Change color <li> - javascript

I'm building a survey and what I'm trying to do now is that when someone clicks an answer (for example: 8) in my list, the background of that answer changes color. This has to work for each seperate answer (there are 60 questions).
The list html/css code:
<div class="answers">
<ul>
<li class="liFirst">1</li>
<li class="liMiddle">2</li>
<li class="liMiddle">3</li>
<li class="liMiddle">4</li>
<li class="liMiddle">5</li>
<li class="liMiddle">6</li>
<li class="liMiddle">7</li>
<li class="liMiddle">8</li>
<li class="liMiddle">9</li>
<li class="liLast">10</li>
</ul>
</div>
.answers {
float: right;
width: 400px;
height: auto;
margin: 0;
background: #DFE5E3;
}
.answers ul {
display: inline-block;
}
.answers li {
float: left;
padding: 0 auto;
font-weight: bold;
}
I've already researched it a bit but can't seem to find a solution that works. I suppose I have to do this in JS/jQuery?
Tried this solution: link! but didn't seem to work for me

add an active class
.active{
background:#000;
color:#FFF;
}
and in jquery toggle class
$('ul li').on('click',function(){
$(this).toggleClass('active');
});
if he wants to choose only one answer
$('ul li').on('click',function(){
$(this).toggleClass('active').siblings().removeClass('active');
});

You can do this with the following:
JQuery
$(document).on('click', '.answers ul li', function(){
$(this).toggleClass('selected').siblings().removeClass('selected');
});
CSS
.answers li.selected {
background: yellow;
}
You probably want to remove the selected background effect one other <li>s once you click on one.
DEMO

If you want to stay strictly CSS based, this checkbox hack may be your best bet... http://css-tricks.com/the-checkbox-hack/
Which can also be implemented with radio buttons to ensure only one answer can be chosen.

jQuery
$( "ul" ).on( "click", "li", function() {
$("li").removeClass("selected");
$(this).addClass("selected");
});
CSS
.selected { background-color:lime;}
JSFiddle Demo

Related

All sub-menus are showing up on click

I want to only show the sub-menu that is the child of the clicked li and button when it is clicked. Currently the click and show and hide are working but the code below shows both the sub-menus on click, I want only the child sub-menu of the li button to show on click.
<ul id="menu-main-menu" class="nav-menu">
<li class="menu-item">Menu link
<button aria-expanded="false" class="dropdown-toggle"></button>
<ul class="sub-menu">
<li class="menu-item">link1</li>
<li class="menu-item">link1</li>
</ul>
</li>
<li class="menu-item">Menu link 2
<button aria-expanded="false" class="dropdown-toggle"></button>
<ul class="sub-menu">
<li class="menu-item">link1</li>
<li class="menu-item">link1</li>
</ul>
</li>
</ul>
<div class="site-content"></div>
jQuery:
jQuery(document).ready(function ($) {
$("#menu-main-menu").on('click', 'button', function (event) {
$('ul.sub-menu').appendTo('.site-content');
if($('ul.sub-menu:visible').length)
$('ul.sub-menu').hide();
else
$('ul.sub-menu').show();
});
});
CSS:
#menu-main-menu ul.sub-menu {
display: none;
}
ul.sub-menu {
display: none;
position: absolute;
z-index: 200000;
top: 0;
left: 1.5%;
right: 1.5%;
margin: 0 auto 0 auto;
padding: 20px;
list-style: none;
}
ul.sub-menu li {
width: 24%;
display: inline-block;
padding: 8px 9px;
text-align: center;
}
ul.sub-menu .toggled-on {
display: block;
}
.site-content {
display: block;
position: relative;
}
Solution: So the solution here was to not use appendTo(), as I had to put the element back where it came from when toggled off. The solution was to merely toggle the menu item using correct position: absolute CSS for the .sub-menu and $()on('click' to toggle it.
jQuery('#menu-main-menu').on('click', 'button', function(event) {
if($(this).closest("li.menu-item").children("ul.sub-menu").length > 0)
{
$(this).closest("li.menu-item").children("ul.sub-menu").slideToggle('fast');
return false;
}
});
See it working here: http://jsfiddle.net/abdqt6d9/
The problem is that you are writing incorrect selectors for your jquery:
$('ul.sub-menu')
That means it will grab all matching elements within the page.
What you need to do is grab the corresponding li. Within your click(), the $(this) becomes the button that is clicked. Using .parent() will give you the li element. From there, search for your corresponding sub-menus within the li_element:
var $li_element = $(this).parent()
var $sub_menu = $li_element.find(".sub-menu")
if ($li_element.find(".sub-menu:visible").length > 0) {
$sub_menu.hide()
} else {
$sub_menu.show()
}
The other problem is that perhaps your styling for your sub-menu is above the buttons. so once you show it, you can no longer press the button. So you need to restyle your sub-menus.
$("ul.sub-menu") will apply to all the sub-menus, so you need to change it to only look for the sub-menu within the buttons parent. You can do this using .closest (or just .parent()) and then .find
//closest("li") will find the closest parent that is an li
//find(".sub-menu") will find the sub-menu within
$(this).closest("li").find(".sub-menu").show();
If you your button is always going to be before the sub-menu you can slim it down to just .next(".sub-menu")
$(this).next(".sub-menu").show();

Mouse hover using jQuery keeps bouncing

I am trying to make a show content on mouseover and make it stay visible while the mouse is hovered on the list since I am planning to put a button there, but when I do hover, hidden content kept bouncing for some reason.
jQuery code
$('li.employers').mouseover(function () {
$('.employer_content').show("slow");
$(this).addClass("bluehover");
});
$('li.employers').mouseout(function () {
$('.employer_content').hide("fast");
$(this).removeClass("bluehover");
});
HTML
<li class="employers">
<div>employer</div>
<div class="employer_content">some content.</div>
</li>
<li class="court">
<div>court</div>
<div class="court_content">some content.</div>
</li>
http://jsfiddle.net/zLdnnxnh/3/
You can use only CSS to show/hide the contents.
You can take advantage of :hover class in CSS.
Demo using CSS only
.whatwedo {
padding: 20px;
color: #fff;
max-width: 480px;
margin: 0 auto;
}
ul li {
list-style-type: none;
}
ul > li {
background-color: #08588c;
display: inline-block;
width: 100%;
cursor: pointer;
float: left;
max-width: 100px;
padding: 10px;
}
.whatwedo {} ul.wwd_list {
padding: 0;
margin: 0;
}
.employer_content,
.court_content,
.companies_content,
.labor_content {
display: none;
clear: right;
}
.bluehover {
background-color: #01395d;
}
.content {
padding-top: 10px;
display: none;
}
.wwd_list li:hover .content {
display: block;
}
<div class="whatwedo">
<ul class="wwd_list">
<li class="employers">
<div>employer</div>
<div class="content">some content.</div>
</li>
<li class="court">
<div>court</div>
<div class="content">some content.</div>
</li>
<li class="companies">
<div>companies</div>
<div class="content">some content.</div>
</li>
<li class="laborunion">
<div>labour union</div>
<div class="content">some content.</div>
</li>
</ul>
</div>
CSS Demo with Animation
If you still want to use jQuery:
You are using mouseover event that is causing the handler to run when the mouse is moved over the element, use mousein instead
Use hover instead of mousein and mouseout
Your code is not flexible, you can optimize your code as follow
Use stop() to stop the previous animations
Demo
$('.wwd_list li').hover(function() {
$(this).find('div.content').stop().show("slow");
$(this).addClass("bluehover");
}, function() {
$(this).find('div.content').stop().hide("slow");
$(this).removeClass("bluehover");
});
.whatwedo {
padding: 20px;
color: #fff;
max-width: 480px;
margin: 0 auto;
}
ul li {
list-style-type: none;
}
ul > li {
background-color: #08588c;
display: inline-block;
width: 100%;
cursor: pointer;
float: left;
max-width: 100px;
padding: 10px;
}
.whatwedo {} ul.wwd_list {
padding: 0;
margin: 0;
}
.employer_content,
.court_content,
.companies_content,
.labor_content {
display: none;
clear: right;
}
.bluehover {
background-color: #01395d;
}
.content {
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.0/jquery.min.js"></script>
<div class="whatwedo">
<ul class="wwd_list">
<li class="employers">
<div>employer</div>
<div class="content">some content.</div>
</li>
<li class="court">
<div>court</div>
<div class="content">some content.</div>
</li>
<li class="companies">
<div>companies</div>
<div class="content">some content.</div>
</li>
<li class="laborunion">
<div>labour union</div>
<div class="content">some content.</div>
</li>
</ul>
</div>
You can use hover instead of mouseover and mouseout. Something like this:
$('li.employers').hover(function () {
$('.employer_content').show("slow");
$(this).addClass( "bluehover" );
console.log('mouse in');
}, function() {
$('.employer_content').hide("slow");
$(this).removeClass( "bluehover" );
console.log('mouse out');
});
Here's an example
How about this?
You can use stop() to stop the animation and continue the new animation from where it has stopped
$('.employer_content').stop().show("slow");
$('.employer_content').stop().hide("slow");
As recommended by others, use mouseenter than mouseover
Replace mouseover function with mouseenter and mouseout with mouseleave.
You can see this fiddle is working.
http://jsfiddle.net/ebilgin/zLdnnxnh/7/
Try using mouseenter and mouseleave instead:
From https://api.jquery.com/mouseover/:
This event type can cause many headaches due to event bubbling. For
instance, when the mouse pointer moves over the Inner element in this
example, a mouseover event will be sent to that, then trickle up to
Outer. This can trigger our bound mouseover handler at inopportune
times. See the discussion for .mouseenter() for a useful alternative.
$('li.employers').mouseenter(function () {
$('.employer_content').show("slow");
$(this).addClass("bluehover");
});
$('li.employers').mouseleave(function () {
$('.employer_content').hide("fast");
$(this).removeClass("bluehover");
});
http://jsfiddle.net/zLdnnxnh/5/
Just remove fast from your hide function. It is WORKING. Check this fiddle: http://jsfiddle.net/zp3jr43u/
The JavaScript code should like the following.
$('li.employers').mouseover(function () {
$('.employer_content').show("slow");
$(this).addClass("bluehover");
});
$('li.employers').mouseout(function () {
$('.employer_content').hide();
$(this).removeClass("bluehover");
});
Somehow the mouseover event gets triggered multiple times. I got it working by using the .stop() method before toggling the element.
http://jsfiddle.net/zLdnnxnh/4/
There's no need to have separate classes for each list item you have. Even with these separate classes the code below should get you up and running with ease.
$('.wwd_list li').hover(function () {
$('div:last-child',this).show("slow");
$(this).addClass( "bluehover" );
}, function(){
$('div:last-child',this).hide("slow");
$(this).removeClass( "bluehover" );
});
Note the fact that you only need to use one hover function instead of mouse in and mouse out. This works because you have two divs in the wwd_lsit class and the last one just so happens to be the one you want to target. So be careful with this if you ever want to change something!
Replace mouseover with mouseenter and mouseout with mouseleave.
See a more factorised form :
$('li').on({
mouseenter: function() {
jQuery("div.content", this).show('slow');
$(this).addClass( "bluehover" );
},
mouseleave: function() {
jQuery("div.content", this).hide('fast');
$(this).removeClass( "bluehover" );
}
});
(content class has been added to each content divs)
See the updated fiddle

Trigger completely separate div based on hover of other div

Is it possible to trigger changes to CSS of an element that is completely unrelated to the hovered div?
I have a CSS hover effect on a dropdown menu, that I also want to trigger the opacity of a div right at the bottom of the page to create a background overlay effect.
This is the CSS I'm using:
#overlay {
background:rgba(0,0,0,0.5);
position:absolute;
top:120px;
left:0;
z-index:0;
height:120%;
width:100%;
visibility:hidden;
opacity:0;
}
#menu-main-menu li.menu-parent-item:hover ul.sub-menu,
#menu-main-menu li.menu-parent-item:hover #overlay {
visibility:visible;
opacity:1;
}
The hover of the sub menu works fine, but the div #overlay is right at the bottom of the page, and doesn't get called when it's hovered.
I've tried all kinds of alternatives such as :hover > #overlay, :hover + #overlay, but nothing seems to trigger it. I also can't seem to find a definitive answer to the question.
Is it possible?
Yes. You can load this style in a php file and then use jQuery to apply the css when your div has been hovered on.
No there is no way to select parent element in css and that means that you cannot move up in hierarchy.
<ul class="hover-parent">
<li></li>
</ul>
<div>Something here</div>
<div class="target"></div>
From this point :
.hover-parent li:hover you cannot go up (to ul or div).
Selectors which you tried to use are "next":
A>B - This will select only direct B children of A
A+B This will select B immediately preceded by A
Here you can find W3C documentation of CSS selector
http://www.w3.org/TR/CSS2/selector.html#adjacent-selectors
And demos:
http://code.tutsplus.com/tutorials/the-30-css-selectors-you-must-memorize--net-16048
Notice that it will be really confusing for user that different part off app/page is changing when he is hovering something else. Bad UX idea.
You're going to have to use JavaScript to do this.
Your posted selector #menu-main-menu li.menu-parent-item:hover #overlay is looking for #overlay somewhere inside of an ancestor element of li.menu-parent-item that is somewhere inside of an ancestor element with an id of #menu-main-menu.
Using the child selector > will not work as the overlay element is not a child of the list element you're hovering in your menu from what you have described and from comment responses.
As #Paulie_D has pointed out the two target elements, the element to be hovered and the overlay element, need to adjacent siblings to use the sibling selector +. From what you have described and the comment responses they are not adjacent siblings.
I have setup a basic example for you using jQuery. This example displays the overlay as long as you are hovering any element in the .main-menu element.
HTML
<ul class="main-menu">
<li>Item One</li>
<li>Item Two</li>
<li>Item Three
<ul class="sub-menu">
<li>Sub Item One</li>
<li>Sub Item Two</li>
<li>Sub Item Three</li>
<li>Sub Item Four</li>
<li>Sub Item Five</li>
</ul>
</li>
</ul>
<main>
Content here.
</main>
<footer>
<div class="overlay">This is my overlay.</div>
</footer>
CSS
body {
margin: 25px auto;
width: 500px;
}
ul,
li {
margin: 0;
padding: 0;
}
main {
min-height: 300px;
}
footer,
.overlay {
height: 50px;
}
footer {
position: realative;
background-color: yellow;
}
.main-menu {
list-style: none;
height: 50px;
}
.main-menu > li {
float: left;
padding: 0 10px;
position: relative;
}
.main-menu > li:hover .sub-menu {
display: block;
}
.sub-menu {
display: none;
list-style: none;
position: absolute;
left: 10px;
width: 150px;
}
.overlay {
display: none;
text-align: center;
}
jQuery
$overlay = $('.overlay');
$('.main-menu > li').hover(
// when hovered
function() {
$overlay.css('display','block');
},
// when NOT hovered
function() {
$overlay.css('display','none');
}
);
jsFiddle: http://jsfiddle.net/ednf2pzq/
Edit
You could simplify the jQuery hover selector to .main-menu.
jQuery
$('.main-menu > li').hover(
// same code as before
);
jsFiddle: http://jsfiddle.net/ednf2pzq/1/

Jquery Drop Down menu blinks only on IE

I am starting a Jquery drop down menu for a new project and it is working as expected on Google Chrome, Firefox, Safari but of course it is giving me some headache on Internet Explorer.
here's the thing,
See this page
http://www.universidadedoingles.com.br/dev/index.ASP
on mouse over the menu HOME, the drop down appers, when you move over the links in IE you see some flashes of the background, which doesn't happens on Chrome and ETC.
here's the js coda I am using to do the dd menu.
<script type="text/javascript">
$(document).ready(function() {
$("ul.mainmenu li.menuhome").mouseover(function(){
$(".arrow-spacer").show(); //When mouse over ...
//Following event is applied to the subnav itself (making height of subnav 150px)
$(this).find('.submenu').show().animate({height: '150px', opacity:'1'},{queue:false, duration:300})
});
$("ul.mainmenu li.menuhome").mouseout(function(){ //When mouse out ...
//Following event is applied to the subnav itself (making height of subnav 0px)
$(this).find('.submenu').hide().animate({height:'0px', opacity:'0'},{queue:false, duration:200})
});
//menu itembackground color animation
$("li").hover(function() {
$(this).animate();},
function() {
$(".arrow-spacer").hide();
});
});
</script>
That's it, I guess it may be simple, but it's been weeks and I still can't get it to work.
Thanks a lot.
I noticed that the anchor <a> tags have a margin on them. My first thing would be to try using padding instead. IE doesn't treat a hover in the margin the same way as other browsers.
in some cases it helps to set a z-index on elements that should placed in top of other elements.
In your case I would try to set the z-index on <ul class="submenu">
No blinks anymore! I changed one word hide() to stop (), now there is no blinking on iE. but...
After you show the menu 1 time, everytime you get your mouse below the link or close the link, the menu shows up again.
check this
www.universidadedoingles.com.br/dev
you'll be able to see its behavior
The thing is that the focus to <li> is lost when you mouse over an <a> element.
Here is something you could use to overcome this. I avoided using the <a> tag, instead I used a JavaScript function to send the user to the preferred location. I used JavaScript rather than jQuery hoping to make it more self-explanatory.
<script type="text/javascript" src="jquery.js" ></script>
<script type='text/javascript'>
$(document).ready(function() {
$('#n li').hover(function() {
$('ul', this).slideDown(200);
$(this).children('a:first').addClass('h');
}, function() {
$('ul', this).slideUp(200);
$(this).children('a:first').removeClass('h');
});
});
function gotoPage(pnumber){
var goto;
if(pnumber==1){
goto="home.html";
}else if(pnumber==2){
goto="watsnew.html";
}else if(pnumber==3){
goto="aboutus.html";
}else if(pnumber==4){
goto="contactus.html";
}
window.location.href=goto;
}
</script>
<style type="text/css">
#n {
padding: 0;
list-style: none;
padding-left: 15px;
padding-right: 15px;
width:5em;
}
#n li {
/*display:inline;*/
background: none;
position: relative;
z-index: 1;
font-weight:bold;
margin: 0 auto;
}
#n li .h {
background-color: #fff;
border-left: 1px solid #CF3;
border-right: 1px solid #CF3;
color: #576482;
height:20px; }
#n ul {
position: absolute;
display: none;
margin: 0; padding: 0;
list-style: none
padding-bottom: 3px;
width:200px;
}
#n ul li {
list-style-type:none;
padding:10px;}
#n ul li:hover {
background:#960;}
</style>
<div>
<ul id="n">
<li>MENU
<ul >
<li value="1" onclick="gotoPage(this.value)">HOME</li>
<li value="2" onclick="gotoPage(this.value)">WATS NEW</li>
<li value="3" onclick="gotoPage(this.value)">ABOUT US</li>
<li value="4" onclick="gotoPage(this.value)">CONTACT US</li>
</ul>
</li>
<ul>
</div>

How can I apply a background-color to several elements on hover?

I have a few lists that are displayed as inline-blocks, creating the illusion of rows. Unlike tables, I cannot format rows straightforwardly. I want to apply a background color to each < li > in the row when one is hovered over. Is this possible through CSS and names/IDs?
Thanks.
Mike
CLARIFICATION: After reading the answers, I realized my question was unclear. I have 3 lists, side by side, so the first < li > in each list would represent the first row. The second < li > in each list would be the second row. And so on.
Cross-browser support with jQuery:
CSS:
li:hover { background-color: #F00 }
And for IE6 -- since it does not support the :hover pseudo-class on anything but <a> elements -- you serve it the following in your IE6-specific style sheets and script:
CSS:
li.hover { background-color: #F00 }
JS:
$("li").hover(
function() {
$(this).addClass("hover");
},
function() {
$(this).removeClass("hover");
}
);
Not sure if I understand correctly, but this fairly simple solution should do the trick:
li:hover {
background-color: pink;
}
Some browsers do not support the hover pseudo class though.
If you want to apply a style to all child elements of a specific <ul>, you can use bigmattyh's approach but set the class on the <ul> instead of the <li>.
Then, add a CSS style such as this:
.hover li { /* some styles */ }
Using this approach you can apply styles to all of the child <li> elements, but you will only need event handlers in the parent <ul>, making your code run faster.
I would simplifying things and reorganize your HTML so that each UL is a row instead of a column.
<html>
<head>
<style>
ul { clear: both; }
ul li {
float: left;
list-style: none;
padding: 5px 10px;
border: 1px solid white; }
.hover { background-color: red; }
</style>
</head>
<body>
<div id='list-container'>
<ul class="hover">
<li>a</li>
<li>b</li>
<li>c</li>
</ul>
<ul>
<li>a</li>
<li>b</li>
<li>c</li>
</ul>
<ul>
<li>a</li>
<li>b</li>
<li>c</li>
</ul>
</div>
</body>
</html>
And the JS:
$(document).ready(function() {
var alterRow = function(container, class, toggleOn) {
$(container).children().each(function(i, node) {
if ( toggleOn ) {
$(node).addClass(class);
} else {
$(node).removeClass(class);
}
});
};
$("#list-container ul").each(function(i, node) {
$(node).hover(
function() { alterRow(node, "hover", true); },
function() { alterRow(node, "hover", false); }
);
});
});
You can see and edit it here: http://jsbin.com/ewijo

Categories