Perfect Scrollbar not working with accordion menu - javascript

I am trying to use the Perfect Scrollbar in collaboration with an accordion slider menu, but its not working as expected. Please check the fiddle here
The scrollbar is getting activated for the first sub-menu, and that too not being displayed on the page load, but I have to scroll in the container first to see the scroll bar.
But the new scrollbar doesn't seem to be updated for the second and third sub-menus.
I am trying to update the PerfectScrollbar function as suggested in here and many other places on internet using ps.update(); Not sure if the function call is properly done here by me or not.
Update:
Got it work, leaving it here, as it may help somebody later.
https://jsfiddle.net/prashu421/egkfxzrt/
$(document).ready(function() {
// Store variables
//var ps = new PerfectScrollbar('.sub-menu');
const container = document.querySelector('.sub-menu');
const ps = new PerfectScrollbar(container);
var accordion_head = $('.accordion > li > a'),
accordion_body = $('.accordion li > .sub-menu');
// Open the first tab on load
accordion_head.first().addClass('active').next().slideDown('normal');
// Click function
accordion_head.on('click', function(event) {
// Disable header links
ps.update();
event.preventDefault();
// Show and hide the tabs on click
if ($(this).attr('class') != 'active'){
accordion_body.slideUp('normal');
$(this).next().stop(true,true).slideToggle('normal');
accordion_head.removeClass('active');
$(this).addClass('active');
}
});
});
Appreciate your consideration and help.
Thank you.


You're only applying the perfect scrollbar to the first container element. Try using querySelectorAll('.sub-menu') and applying the perfect scrollbar to each container:
$(document).ready(function() {
const container = document.querySelector('.sub-menu');
document.querySelectorAll('.sub-menu').forEach(container => {
new PerfectScrollbar(container);
});
const accordion_head = $('.accordion > li > a');
const accordion_body = $('.accordion li > .sub-menu');
// Open the first tab on load
accordion_head.first().addClass('active').next().slideDown('normal');
// Click function
accordion_head.on('click', function(event) {
// Disable header links
event.preventDefault();
// Show and hide the tabs on click
if ($(this).attr('class') != 'active') {
accordion_body.slideUp('normal');
$(this).next().stop(true, true).slideToggle('normal');
accordion_head.removeClass('active');
$(this).addClass('active');
}
});
});
.accordion,
.accordion ul,
.accordion li,
.accordion a,
.accordion span {
margin: 0;
padding: 0;
border: none;
outline: none;
}
.accordion li {
list-style: none;
}
.accordion li>a {
display: block;
position: relative;
min-width: 110px;
padding: 0 0 0 40px;
height: 30px;
color: #cbcbcb;
font: bold 12px/32px Trebuchet MS, Arial, sans-serif;
text-decoration: none;
text-shadow: 0px 1px 0px rgba(0, 0, 0, .35);
background: #717377;
background: -moz-linear-gradient(top, #717377 0%, #515356 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #717377), color-stop(100%, #515356));
background: -webkit-linear-gradient(top, #717377 0%, #515356 100%);
background: -o-linear-gradient(top, #717377 0%, #515356 100%);
background: -ms-linear-gradient(top, #717377 0%, #515356 100%);
background: linear-gradient(to bottom, #717377 0%, #515356 100%);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#717377', endColorstr='#515356', GradientType=0);
-webkit-box-shadow: inset 0px 1px 0px 0px rgba(255, 255, 255, .1), 0px 1px 0px 0px rgba(0, 0, 0, .1);
-moz-box-shadow: inset 0px 1px 0px 0px rgba(255, 255, 255, .1), 0px 1px 0px 0px rgba(0, 0, 0, .1);
box-shadow: inset 0px 1px 0px 0px rgba(255, 255, 255, .1), 0px 1px 0px 0px rgba(0, 0, 0, .1);
}
.accordion>li:hover>a,
.accordion>li:target>a,
.accordion>li>a.active {
color: #fdfdfd;
text-shadow: 1px 1px 1px rgba(255, 255, 255, .2);
background: #4f5154;
background: url(data:image/svg+xml;base64,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);
background: -moz-linear-gradient(top, #4f5154 0%, #2d2e30 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #4f5154), color-stop(100%, #2d2e30));
background: -webkit-linear-gradient(top, #4f5154 0%, #2d2e30 100%);
background: -o-linear-gradient(top, #4f5154 0%, #2d2e30 100%);
background: -ms-linear-gradient(top, #4f5154 0%, #2d2e30 100%);
background: linear-gradient(to bottom, #4f5154 0%, #2d2e30 100%);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#4f5154', endColorstr='#2d2e30', GradientType=0);
}
.accordion li>a span {
display: block;
position: absolute;
top: 7px;
right: 0;
padding: 0 10px 0px 10px;
margin-right: 10px;
font: normal bold 12px/18px Arial, sans-serif;
background: #404247;
-webkit-border-radius: 15px;
-moz-border-radius: 15px;
border-radius: 15px;
-webkit-box-shadow: inset 1px 1px 1px rgba(0, 0, 0, .2), 1px 1px 1px rgba(255, 255, 255, .1);
-moz-box-shadow: inset 1px 1px 1px rgba(0, 0, 0, .2), 1px 1px 1px rgba(255, 255, 255, .1);
box-shadow: inset 1px 1px 1px rgba(0, 0, 0, .2), 1px 1px 1px rgba(255, 255, 255, .1);
}
.accordion>li:hover>a span,
.accordion>li:target>a span,
.accordion>li>a.active span {
color: #fdfdfd;
text-shadow: 0px 1px 0px rgba(0, 0, 0, .35);
background: #161616;
}
/* Images */
.accordion>li>a:before {
position: absolute;
top: 0;
left: 0;
content: '';
width: 24px;
height: 24px;
margin: 4px 8px;
background-repeat: no-repeat;
background-image: url(Images/icone_accordeon.png);
background-position: 0px 0px;
}
.accordion li.files>a:before {
background-position: 0px 0px;
}
.accordion li.files:hover>a:before,
.accordion li.files:target>a:before,
.accordion li.files>a.active:before {
background-position: 0px -24px;
}
.accordion li.mail>a:before {
background-position: -24px 0px;
}
.accordion li.mail:hover>a:before,
.accordion li.mail:target>a:before,
.accordion li.mail>a.active:before {
background-position: -24px -24px;
}
.accordion li.cloud>a:before {
background-position: -48px 0px;
}
.accordion li.cloud:hover>a:before,
.accordion li.cloud:target>a:before,
.accordion li.cloud>a.active:before {
background-position: -48px -24px;
}
.accordion li.sign>a:before {
background-position: -72px 0px;
}
.accordion li.sign:hover>a:before,
.accordion li.sign:target>a:before,
.accordion li.sign>a.active:before {
background-position: -72px -24px;
}
/* Sub Menu */
.sub-menu li a {
color: #797979;
text-shadow: 1px 1px 0px rgba(255, 255, 255, .2);
background: #e5e5e5;
border-bottom: 1px solid #c9c9c9;
-webkit-box-shadow: inset 0px 1px 0px 0px rgba(255, 255, 255, .1), 0px 1px 0px 0px rgba(0, 0, 0, .1);
-moz-box-shadow: inset 0px 1px 0px 0px rgba(255, 255, 255, .1), 0px 1px 0px 0px rgba(0, 0, 0, .1);
box-shadow: inset 0px 1px 0px 0px rgba(255, 255, 255, .1), 0px 1px 0px 0px rgba(0, 0, 0, .1);
}
.sub-menu li:hover a {
background: #efefef;
}
.sub-menu li:last-child a {
border: none;
}
.sub-menu li>a span {
color: #797979;
text-shadow: 1px 1px 0px rgba(255, 255, 255, .2);
background: #dbdbdb;
border: 1px solid #c9c9c9;
-webkit-box-shadow: none;
-moz-box-shadow: none;
box-shadow: none;
}
.sub-menu em {
position: absolute;
top: 0;
left: 0;
margin-left: 14px;
color: #a6a6a6;
font: normal 10px/32px Arial, sans-serif;
}
/* Functionality */
.accordion li>.sub-menu {
display: none;
max-height: 150px;
overflow: auto;
position: relative;
}
.accordion li:target>.sub-menu {
display: block;
}
#bloc-accordeon {
width: 40%;
}
#bloc-accordeon p {
Font-family: Trebuchet MS, Arial, Helvetica;
font-size: 12px;
font-weight: bold;
color: #797979;
}
/*Scroll bar styling*/
.ps__rail-x,
.ps__rail-y {
opacity: 0.6;
}
<script src="https://rawgit.com/utatti/perfect-scrollbar/master/dist/perfect-scrollbar.js"></script>
<link href="https://rawgit.com/utatti/perfect-scrollbar/master/css/perfect-scrollbar.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="bloc-accordeon">
<ul class="accordion">
<li id="one" class="files">
One
<ul class="sub-menu">
<li style="font-size: 12px;"><em>01</em>4.2 FFF</li>
<li style="font-size: 12px;"><em>02</em>6.3 FFF</li>
<li style="font-size: 12px;"><em>03</em>4.0 FFF</li>
<li style="font-size: 12px;"><em>04</em>4.2 TTD</li>
<li style="font-size: 12px;"><em>05</em>3.0 TTD</li>
<li style="font-size: 12px;"><em>06</em>3.0 TTD</li>
<li style="font-size: 12px;"><em>07</em>3.0 TTD</li>
<li style="font-size: 12px;"><em>08</em>3.0 TTD</li>
</ul>
</li>
<li id="two" class="mail">
Two
<ul class="sub-menu">
<li style="font-size: 12px;"><em>01</em>4.2 FFF</li>
<li style="font-size: 12px;"><em>02</em>6.3 FFF</li>
<li style="font-size: 12px;"><em>03</em>4.0 FFF</li>
<li style="font-size: 12px;"><em>04</em>4.2 TTD</li>
<li style="font-size: 12px;"><em>05</em>3.0 TTD</li>
<li style="font-size: 12px;"><em>06</em>3.0 TTD</li>
<li style="font-size: 12px;"><em>07</em>3.0 TTD</li>
<li style="font-size: 12px;"><em>08</em>3.0 TTD</li>
</ul>
</li>
<li id="three" class="cloud">
Three
<ul class="sub-menu">
<li style="font-size: 12px;"><em>01</em>4.2 FFF</li>
<li style="font-size: 12px;"><em>02</em>6.3 FFF</li>
<li style="font-size: 12px;"><em>03</em>4.0 FFF</li>
<li style="font-size: 12px;"><em>04</em>4.2 TTD</li>
<li style="font-size: 12px;"><em>05</em>3.0 TTD</li>
<li style="font-size: 12px;"><em>06</em>3.0 TTD</li>
<li style="font-size: 12px;"><em>07</em>3.0 TTD</li>
<li style="font-size: 12px;"><em>08</em>3.0 TTD</li>
</ul>
</li>
</ul>
</div>

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border-radius: 3px;
}
.search .results a span { font-weight: 200 }
.search .results a:before {
content: '';
width: 18px;
height: 18px;
position: absolute;
top: 50%;
right: 10px;
margin-top: -9px;
/* background: url("https://cssdeck.com/uploads/media/items/7/7BNkBjd.png") 0 0 no-repeat; */
}
.search .results a:hover {
text-decoration: none;
color: #fff;
text-shadow: 0 -1px rgba(0, 0, 0, 0.3);
border-color: #2380dd #2179d5 #1a60aa;
background-color: #338cdf;
/* background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #59aaf4), color-stop(100%, #338cdf));
background-image: -webkit-linear-gradient(top, #59aaf4, #338cdf);
background-image: -moz-linear-gradient(top, #59aaf4, #338cdf);
background-image: -ms-linear-gradient(top, #59aaf4, #338cdf);
background-image: -o-linear-gradient(top, #59aaf4, #338cdf);
background-image: linear-gradient(top, #59aaf4, #338cdf); */
-webkit-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
-moz-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
-ms-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
-o-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
}
:-moz-placeholder {
color: #a7aabc;
font-weight: 200;
}
::-webkit-input-placeholder {
color: #a7aabc;
font-weight: 200;
}
.lt-ie9 .search input { line-height: 26px }
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<div class="modal fade" id="search-bar" role="dialog">
<div class="modal-dialog search-modal">
<div class="modal-content search-modal">
<div class="modal-body">
<section class="main">
<form class="search">
<input type="text" class="search-input" name="q" placeholder="Search..." />
<ul class="results">
<li class="search-list">Search Result #1<br /><span>Description...</span></li>
<li class="search-list">Search Result #2<br /><span>Description...</span></li>
<li class="search-list">Search Result #3<br /><span>Description...</span></li>
<li class="search-list">Search Result #4</li>
</ul>
</form>
</section>
</div>
</div>
</div>
</div>

Custom Dropdown Search Bar working everywhere but IE

I am just getting into javascript and Web Development as a former .NET Desktop App guy and I am struggling with figuring out what is causing issues for me with Internet Explorer (Not working on 11). Can anyone shed some light on this?
Greatly Appreciate any help! Also and advice on what to avoid to support IE.
When Debugging in IE11 Im getting an error on my search filter:
"Object doesn't support property or method 'includes'"
// check for min length
if (filter.length < 3) {
$('#dropdownItems').append("<li><a>Please input at least 3 characters.</a></li>");
} else {
for (i = 0; i < count; i++) {
if (playerDatabase[i].name.toUpperCase().includes(filter)) {
$('#dropdownItems').append("<li><a href='playerPage.html?playerID=" + playerDatabase[i].playerID +"'>" + playerDatabase[i].name + " - " + playerDatabase[i].pos + "</a></li>");
}
}
}
Full Snippet
var playerDatabase = [];
var count;
// Data Load Event
function showModal() {
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
playerDatabase = JSON.parse(this.responseText);
count = $(playerDatabase).toArray().length;
}
};
var requestURL = 'https://raw.githubusercontent.com/maat7043/sportssabermetrics/master/playerDatabase.json';
xmlhttp.open("GET", requestURL, true);
xmlhttp.send();
};
// Search Bar Filter Logic
function searchPlayers() {
var input, filter, ul, li, a, i;
input = document.getElementById("searchBarInput");
filter = input.value.toUpperCase();
div = document.getElementById("dropdownItems");
li = div.getElementsByTagName("li");
// remove all current items
for (i = li.length - 1; i > -1; i--) {
div.removeChild(li[i]);
}
// check for min length
if (filter.length < 3) {
$('#dropdownItems').append("<li><a>Please input at least 3 characters.</a></li>");
} else {
for (i = 0; i < count; i++) {
if (playerDatabase[i].name.toUpperCase().includes(filter)) {
$('#dropdownItems').append("<li>" + playerDatabase[i].name + " - " + playerDatabase[i].pos + "</li>");
}
}
}
}
// Search Bar focus lost
$(document).on("focusout", "#searchBarInput input", function() {
var div = document.getElementById("dropdownItems");
var li = div.getElementsByTagName("li");
// remove all current items
for (i = li.length - 1; i > -1; i--) {
div.removeChild(li[i]);
}
});
/* * Copyright (c) 2012 Thibaut Courouble
* Licensed under the MIT License
================================================== */
a {
color: #1e7ad3;
text-decoration: none;
font-size: 12px;
}
a:hover {
text-decoration: underline
}
input {
font-size: 13px;
color: white;
}
.search {
position: relative;
margin: 0 auto;
}
.search input {
height: 26px;
width: 100%;
padding: 0 12px 0 25px;
background: #555860;
border-width: 1px;
border-style: solid;
border-color: #a8acbc #babdcc #c0c3d2;
border-radius: 13px;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
-ms-box-sizing: border-box;
-o-box-sizing: border-box;
box-sizing: border-box;
-webkit-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
-moz-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
-ms-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
-o-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
}
.search input:focus {
outline: none;
border-color: #66b1ee;
-webkit-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
-moz-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
-ms-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
-o-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
}
.search input:focus+.results,
.search .results:hover {
display: block
}
.search .results {
display: none;
position: absolute;
top: 35px;
left: 0;
right: 0;
z-index: 10;
padding: 0;
margin: 0;
border-width: 1px;
border-style: solid;
border-color: #cbcfe2 #c8cee7 #c4c7d7;
border-radius: 3px;
background-color: #fdfdfd;
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #fdfdfd), color-stop(100%, #eceef4));
background-image: -webkit-linear-gradient(top, #fdfdfd, #eceef4);
background-image: -moz-linear-gradient(top, #fdfdfd, #eceef4);
background-image: -ms-linear-gradient(top, #fdfdfd, #eceef4);
background-image: -o-linear-gradient(top, #fdfdfd, #eceef4);
background-image: linear-gradient(top, #fdfdfd, #eceef4);
-webkit-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
-moz-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
-ms-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
-o-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}
.search .results li {
display: block;
}
.search .results li:first-child {
margin-top: -1px
}
.search .results li:first-child:before,
.search .results li:first-child:after {
display: block;
content: '';
width: 0;
height: 0;
position: absolute;
left: 50%;
margin-left: -5px;
border: 5px outset transparent;
}
.search .results li:first-child:before {
border-bottom: 5px solid #c4c7d7;
top: -11px;
}
.search .results li:first-child:after {
border-bottom: 5px solid #fdfdfd;
top: -10px;
}
.search .results li:first-child:hover:before,
.search .results li:first-child:hover:after {
display: none
}
.search .results li:last-child {
margin-bottom: -1px
}
.search .results a {
display: block;
position: relative;
margin: 0 -1px;
padding: 6px 40px 6px 10px;
color: #808394;
text-color: #808394;
font-weight: 500;
text-shadow: 0 1px #fff;
border: 1px solid transparent;
border-radius: 3px;
}
.search .results a span {
font-weight: 200
}
.search .results a:before {
content: '';
width: 18px;
height: 18px;
position: absolute;
top: 50%;
right: 10px;
margin-top: -9px;
}
.search .results a:hover {
text-decoration: none;
color: #fff;
text-shadow: 0 -1px rgba(0, 0, 0, 0.3);
border-color: #2380dd #2179d5 #1a60aa;
background-color: #338cdf;
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #59aaf4), color-stop(100%, #338cdf));
background-image: -webkit-linear-gradient(top, #59aaf4, #338cdf);
background-image: -moz-linear-gradient(top, #59aaf4, #338cdf);
background-image: -ms-linear-gradient(top, #59aaf4, #338cdf);
background-image: -o-linear-gradient(top, #59aaf4, #338cdf);
background-image: linear-gradient(top, #59aaf4, #338cdf);
-webkit-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
-moz-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
-ms-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
-o-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
}
:-moz-placeholder {
color: #a7aabc;
font-weight: 200;
}
::-webkit-input-placeholder {
color: #a7aabc;
font-weight: 200;
}
.lt-ie9 .search input {
line-height: 26px
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<html>
<head>
<title>Sports Sabermetrics</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="icon" type="image/ico" href="http://www.sportssabermetrics.net/html/images/icon.png">
<!-- W3 Schools CSS -->
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<!-- Bootstrap -->
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet">
<link href="https://cdnjs.cloudflare.com/ajax/libs/ionicons/4.0.0-18/css/ionicons.min.css" rel="stylesheet">
</head>
<body onpageshow="showModal()" style="background-color: black;">
<div class="top-bar no-padding" style="height: 100vh; background-image: url(http://www.sportssabermetrics.net/html/images/header_image.jpg); background-size: cover;">
<div class="w3-display-middle w3-center" style="width:60%;">
<!-- Search Bar -->
<section class="main">
<div id="myDropdown" style="margin: auto; font-size: 14px;">
<form class="search" method="post"><input type="text" id="searchBarInput" placeholder="Search for NFL Player" onkeyup="searchPlayers()"/>
<ul id="dropdownItems" class="results">
</ul>
</form>
</div>
</section>
</div>
</div>
</body>
</html>

As per the docs, IE does not support the includes method. You can use indexOf instead:
if (playerDatabase[i].name.toUpperCase().indexOf(filter) >= 0) { ... }
Welcome to the wonderful world of browser compatability issues ;)

Anchor tag not working inside List Item

https://jsfiddle.net/1exbczjy/
<body>
<section class="main">
<form class="search" action="">
<input type="search" id ="searchit" placeholder="search.." />
<ul class="results" id="searchlist">
</ul>
</form>
</section>
</body>
This is a demo of the code that I am trying to run , my original code contains js file which is dynamically populating my ul class using the innerHTML function but the output is same as the dummy list data I have provided.
I am not able to understand why my list tag does not work . I have tried to resolve it using other answers provided on this site , checking for z index and absolute and relative position of a and li tag.

The reason is because on click, the input loses its :focus (as pointed out by shaochuancs) and the content is hidden before the click on the anchor is registered. A click event consists of mousedown and mouseup event. The loss of focus is triggered on mousedown anywhere on the page. So just prevent the loss of :focus on mousedown on the anchor tags. The rest of the code would function as expected, because the anchor tag click is triggered on mouseup.
So the issue can be dealt with some basic javascript/jQuery, by simply preventDefault() on mousedown on the anchor tags.
$("a").mousedown(function(ev) {
ev.preventDefault();
}
Note that in this code snippet the link doesn't load because it is blocked by the frame. But you can see in the console that the link is clicked.
$("a").mousedown(function(ev) {
ev.preventDefault();
console.log($(this).attr("href"));
console.log("Click triggered");
});
/* * Copyright (c) 2012 Thibaut Courouble
* Licensed under the MIT License
================================================== */
body {
background: #f7f7f7;
color: #404040;
font-family: 'HelveticaNeue', 'Helvetica Neue', Helvetica, Arial, sans-serif;
font-size: 13px;
font-weight: normal;
line-height: 20px;
}
a {
color: #1e7ad3;
text-decoration: none;
}
a:hover {
text-decoration: underline
}
.container,
.main {
width: 640px;
margin-left: auto;
margin-right: auto;
height: 300px;
}
.main {
margin-top: 50px
}
input {
font-family: 'HelveticaNeue', 'Helvetica Neue', Helvetica, Arial, sans-serif;
font-size: 13px;
color: #555860;
}
.search {
position: relative;
margin: 0 auto;
width: 300px;
}
.search input {
height: 26px;
width: 100%;
padding: 0 12px 0 25px;
border-width: 1px;
border-style: solid;
border-color: #a8acbc #babdcc #c0c3d2;
border-radius: 13px;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
-ms-box-sizing: border-box;
-o-box-sizing: border-box;
box-sizing: border-box;
-webkit-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
-moz-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
-ms-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
-o-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
}
.search input:focus {
outline: none;
border-color: #66b1ee;
-webkit-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
-moz-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
-ms-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
-o-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
}
.search input:focus+.results {
display: block
}
.search .results {
display: none;
position: absolute;
top: 35px;
left: 0;
right: 0;
z-index: 10000;
padding: 0;
margin: 0;
border-width: 1px;
border-style: solid;
border-color: #cbcfe2 #c8cee7 #c4c7d7;
border-radius: 3px;
background-color: #fdfdfd;
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #fdfdfd), color-stop(100%, #eceef4));
background-image: -webkit-linear-gradient(top, #fdfdfd, #eceef4);
background-image: -moz-linear-gradient(top, #fdfdfd, #eceef4);
background-image: -ms-linear-gradient(top, #fdfdfd, #eceef4);
background-image: -o-linear-gradient(top, #fdfdfd, #eceef4);
background-image: linear-gradient(top, #fdfdfd, #eceef4);
-webkit-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
-moz-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
-ms-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
-o-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}
.search .results li {
display: block
}
.search .results li:first-child {
margin-top: -1px
}
.search .results li:first-child:before,
.search .results li:first-child:after {
display: block;
content: '';
width: 0;
height: 0;
position: absolute;
left: 50%;
margin-left: -5px;
border: 5px outset transparent;
}
.search .results li:first-child:before {
border-bottom: 5px solid #c4c7d7;
top: -11px;
}
.search .results li:first-child:after {
border-bottom: 5px solid #fdfdfd;
top: -10px;
}
.search .results li:first-child:hover:before,
.search .results li:first-child:hover:after {
display: none
}
.search .results li:last-child {
margin-bottom: -1px
}
.search .results li a {
display: block;
position: relative;
margin: 0 -1px;
padding: 6px 40px 6px 10px;
color: #808394;
font-weight: 500;
text-shadow: 0 1px #fff;
border: 1px solid transparent;
border-radius: 3px;
}
.search .results li a span {
font-weight: 200
}
.search .results li a:before {
content: '';
width: 18px;
height: 18px;
position: absolute;
top: 50%;
right: 10px;
margin-top: -9px;
}
.search .results li a:hover {
text-decoration: none;
color: #fff;
text-shadow: 0 -1px rgba(0, 0, 0, 0.3);
border-color: #2380dd #2179d5 #1a60aa;
background-color: #338cdf;
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #59aaf4), color-stop(100%, #338cdf));
background-image: -webkit-linear-gradient(top, #59aaf4, #338cdf);
background-image: -moz-linear-gradient(top, #59aaf4, #338cdf);
background-image: -ms-linear-gradient(top, #59aaf4, #338cdf);
background-image: -o-linear-gradient(top, #59aaf4, #338cdf);
background-image: linear-gradient(top, #59aaf4, #338cdf);
-webkit-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
-moz-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
-ms-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
-o-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
}
:-moz-placeholder {
color: #a7aabc;
font-weight: 200;
}
::-webkit-input-placeholder {
color: #a7aabc;
font-weight: 200;
}
.search li {
padding: 0px;
}
.search li a {
margin: 0px;
display: block;
width: 100%;
height: 100%;
}
.lt-ie9 .search input {
line-height: 26px
}
/*adding effect when the mouse is hovered over list item*/
/*adding effect when the mouse is hovered over list item*/
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<title>Input Autocomplete Suggestions Demo</title>
<link rel="shortcut icon" href="http://designshack.net/favicon.ico">
<link rel="icon" href="http://designshack.net/favicon.ico">
<body>
<section class="main">
<form class="search" action="">
<input type="search" id="searchit" placeholder="search.." />
<ul class="results" id="searchlist">
<li>Tag A</li>
<li>Tag B</li>
</ul>
</form>
</section>
</body>

The root cause is: when anchor tag is clicked, .search input lose its :focus status, which makes .search input:focus + .results { display: block } disabled and .search .results's display as none again -- As the <a> tag does not exist on page anymore, nothing happens. It has nothing to do with ul or li.
Here is a simplified example: https://jsfiddle.net/cshao/rtonLr4z/, the <a> won't work as in the question.

There is also another possibility. If you set the decoration of the Anchor to none and change the background of the li on hovering the Achor link only works when you are hovering on the text of the Anchor but what you want is that the Anchor activates on the whole surface of the li, but how you can make that work is another thing.

How can I keep hover state on unhover until page refresh?

I'm having a lot of trouble getting this to work properly. I just want to make .accordion-content stay upon unhover. I've tried several approaches to this and now I'm pretty much at a total loss. Here is the code I'm working with:
HTML
<ul class="accordion-thing">
<li>
<a>How do I setup my Chem+Nect Drum?<span>Learn More</span></a>
<ul class="accordion-content">
<li><em>01</em></li>
</ul>
</li>
CSS
.accordion-thing,
.accordion-thing ul,
.accordion-thing li,
.accordion-thing a,
.accordion-thing span {
margin: 0;
padding: 0;
border: none;
outline: none;
}
.accordion-thing li {
list-style: none !important;
}
.accordion-thing li > a {
display: block;
position: relative;
min-width: 910px;
min-height: 46px;
padding: 0 10px 0 40px;
vertical-align: middle !important;
color: #fdfdfd;
font: bold 16px/42px Arial, sans-serif !important;
text-decoration: none;
text-shadow: 0px 1px 0px rgba(0,0,0, .35) !important;
background: #6c6e74;
background: -moz-linear-gradient(top, #6c6e74 0%, #4b4d51 100%) !important;
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#6c6e74), color-stop(100%,#4b4d51)) !important;
background: -webkit-linear-gradient(top, #6c6e74 0%, #4b4d51 100%) !important;
background: -o-linear-gradient(top, #6c6e74 0%, #4b4d51 100%) !important;
background: -ms-linear-gradient(top, #6c6e74 0%, #4b4d51 100%) !important;
background: linear-gradient(top, #6c6e74 0%, #4b4d51 100%) !important;
-webkit-box-shadow: inset 0px 1px 0px 0px rgba(255,255,255, .1), 0px 1px 0px 0px rgba(0,0,0, .1);
-moz-box-shadow: inset 0px 1px 0px 0px rgba(255,255,255, .1), 0px 1px 0px 0px rgba(0,0,0, .1);
box-shadow: inset 0px 1px 0px 0px rgba(255,255,255, .1), 0px 1px 0px 0px rgba(0,0,0, .1);
}
.accordion-thing li > a span {
display: block;
position: absolute;
top: 12px;
right: 0px;
padding: 0 10px;
margin-right: 10px;
font: normal bold 14px/18px Arial, sans-serif !important;
background: #404247;
-webkit-border-radius: 15px;
-moz-border-radius: 15px;
border-radius: 15px;
-webkit-box-shadow: inset 1px 1px 1px rgba(0,0,0, .2), 1px 1px 1px rgba(255,255,255, .1);
-moz-box-shadow: inset 1px 1px 1px rgba(0,0,0, .2), 1px 1px 1px rgba(255,255,255, .1);
box-shadow: inset 1px 1px 1px rgba(0,0,0, .2), 1px 1px 1px rgba(255,255,255, .1);
}
.accordion-content li a {
color: #797979;
text-shadow: 1px 1px 0px rgba(255,255,255, .2);
background: #e5e5e5;
border-bottom: 1px solid #c9c9c9;
-webkit-box-shadow: inset 0px 1px 0px 0px rgba(255,255,255, .1), 0px 1px 0px 0px rgba(0,0,0, .1);
-moz-box-shadow: inset 0px 1px 0px 0px rgba(255,255,255, .1), 0px 1px 0px 0px rgba(0,0,0, .1);
box-shadow: inset 0px 1px 0px 0px rgba(255,255,255, .1), 0px 1px 0px 0px rgba(0,0,0, .1);
}
.accordion-content li:last-child a { border: none; }
.accordion-content li > a span {
color: #797979;
text-shadow: 1px 1px 0px rgba(255,255,255, .2);
background: transparent;
border: 1px solid #c9c9c9;
-webkit-box-shadow: none;
-moz-box-shadow: none;
box-shadow: none;
}
.accordion-content {
position: absolute;
top: o;
left: 0
margin-left: 14px;
color: #a6a6a6;
font: normal 10px/32px Arial, sans-serif !important;
}
.accordion-thing > li:hover > a,
.accordion-thing > li:target > a {
color: #00334c;
text-shadow: 1px 1px 1px rgba(255,255,255, .2);
background: #0679b9 !important;
background: -moz-linear-gradient(top, #0679b9 0%, #3b59e2 100%) !important;
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#0679b9), color-stop(100%,#3b59e2)) !important;
background: -webkit-linear-gradient(top, #0679b9 0%,#3b59e2 100%) !important;
background: -o-linear-gradient(top #0679b9 0%,#3b59e2 100%) !important;
background: -ms-linear-gradient(top #0679b9 0%,#3b59e2 100%) !important;
background: linear-gradient(top #0679b9 0%,#3b59e2 100%) !important;
}
.accordion-thing > li:hover > a span,
.accordion-thing > li:target > a span {
color: #fdfdfd !important;
text-shadow: 0px 1px 0px rgba(0,0,0, .35);
background: #00334c;
}
.accordion-content li:hover a { background: #efefef; }
.accordion-thing li > .accordion-content {
height: 0;
overflow: hidden;
-webkit-transition: all .2s ease-in-out;
-moz-transition: all .2s ease-in-out;
-o-transition: all .2s ease-in-out;
-ms-transition: all 2s ease-in-out;
transition: all .2s ease-in-out;
}
.accordion-thing li:hover > .accordion-content {
height: 98px;
}
Is there some Javascript I can add to make this work properly?

If you want to have the hover style applied permanently after the first hover until the page refreshes, you will have to use javascript:
var accordion = document.getElementsByClassName('accordion-thing')[0];
accordion.addEventListener('mouseenter', function () {
this.classList.add('hovered');
});
then in your css, anywhere that you have .accordion-thing li:hover {}, you can change that to .accordion-thing.hovered li {}
Here is a simple example to show this concept.

How to stop HTML element getting covered when window resized?

I have a nav bar and a a div on a website right now. The div is slightly covering the nav bar, however when I resize my window it completely covers the nav bar. I would like it to always somewhat cover the nav bar but not completely.
HTML
<body>
<div id="wrapper">
<ul>
<li class="nav">Home</li>
<li class="nav">About Me</li>
<li class="nav">Projects</li>
<li class="nav">Resume</li>
<li class="nav">Contact</li>
</ul>
<div id="bod">
<h1 class="title">Home</h1>
</div>
</div>
</body>
CSS
#bod {
height: 100%;
width: 86%;
background-color: #F4F3EE;
position: absolute;
top: 0px;
right: 0px;
box-shadow: -1px 0px 10px 1px #999;
-moz-box-shadow: -1px 0px 10px 1px #999;
-webkit-box-shadow: -1px 0px 10px 1px #999;}
.nav {
border: 1px solid #F4F3EE;
width:20%;
height:100px;
color: #F4F3EE;
margin: 2px 0px 0px 10px;
text-align: left;
font-family: Tahoma, Geneva, sans-serif;
font-size: 30px;
padding: 0px 0px 5px 0px;
list-style-type: none;
border-radius: 5px;
box-shadow: -1px 0px 10px 1px #999;
-moz-box-shadow: -1px 0px 10px 1px #999;
-webkit-box-shadow: -1px 0px 10px 1px #999;
box-shadow: inset 1px 2px 4px #F4F3EE;
-moz-box-shadow: inset 1px 2px 4px #F4F3EE;
-webkit-box-shadow: inset 1px 2px 4px #F4F3EE;
background: #b58aa5;
background: -moz-linear-gradient(top, #ad8599 1%, #b58aa5 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(1%,#ad8599), color-stop(100%,#b58aa5));
background: -webkit-linear-gradient(top, #ad8599 1%,#b58aa5 100%);
background: -o-linear-gradient(top, #ad8599 1%,#b58aa5 100%);
background: -ms-linear-gradient(top, #ad8599 1%,#b58aa5 100%);
background: linear-gradient(to bottom, #ad8599 1%,#b58aa5 100%);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ad8599', endColorstr='#b58aa5',GradientType=0 );
JavaScript
$(document).ready(function() {
$('.nav').mouseenter(function() {
$(this).animate({marginLeft: '-=20px'}, 100);
$(this).addClass('.nav1');
});
$('.nav').mouseleave(function() {
$(this).animate({marginLeft: '+=20px'}, 100);
});
});
I can't for the life of me figure out what to do make sure the user can still see the nav when the window is resized.

Set left: 200px; on #bod, that will fix it. Then you can get rid of the width: 86%; which is set on #bod as well. You are absolutely positioning #bod, this means that #bod is taken out of the regular flow and turned into it's own thing. Now you can set top, left, bottom and right to specify the space between the sides of the web page and #bod. If you set bottom: 0px; on #bod you won't need height: 100%; on #bod either.

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