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Unable to append HTML to a list using Jquery

I have the following CSS that forms a directory tree. I want to be able to dynamically append <li> tags with N number of children <ul> tags to the existing dirTree. No matter what I try, I just end up appending raw text or the styles aren't being applied correctly.
I'm not a CSS guy, but I was inspecting in dev tools and see :before and :after, but not quite sure how to attach this using jquery.
The below code should be able to run in a static file without issues.
Thanks.
$("#dirTree").append("<li>Parent Directory</li><ul>child1</ul><ul>child2</ul>");
ul {
margin: 0px 0px 0px 20px;
list-style: none;
line-height: 2em;
font-family: monospace;
}
ul li {
font-size: 13px;
position: relative;
}
ul li:before {
position: absolute;
left: -15px;
top: 0px;
content: '';
display: block;
border-left: 1px solid #ddd;
height: 1em;
border-bottom: 1px solid #ddd;
width: 10px;
}
ul li:after {
position: absolute;
left: -15px;
bottom: -7px;
content: '';
display: block;
border-left: 1px solid #ddd;
height: 100%;
}
ul li.root {
margin: 0px 0px 0px -20px;
}
ul li.root:before {
display: none;
}
ul li.root:after {
display: none;
}
ul li:last-child:after {
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="directoryPanel">
<div class="dir">
<ul id="dirTree">
<li class="root">
File Explorer
</li>
<li>
Want to create a new directory? Click here
<ul>
<li>Click here to upload a file</li>
</ul>
</li>
</ul>
</div>
</div>

«...seems like the branching style got removed...»
You are missing the <li> in your markup. The "branching style" is tied to it.
Moreover, some text within a <ul> but without <li> is invalid markup.
$("#dirTree").append("<li>Parent Directory</li><ul><li>child1</li></ul><ul><li>child2</li></ul>");
ul {
margin: 0px 0px 0px 20px;
list-style: none;
line-height: 2em;
font-family: monospace;
}
ul li {
font-size: 13px;
position: relative;
}
ul li:before {
position: absolute;
left: -15px;
top: 0px;
content: '';
display: block;
border-left: 1px solid #ddd;
height: 1em;
border-bottom: 1px solid #ddd;
width: 10px;
}
ul li:after {
position: absolute;
left: -15px;
bottom: -7px;
content: '';
display: block;
border-left: 1px solid #ddd;
height: 100%;
}
ul li.root {
margin: 0px 0px 0px -20px;
}
ul li.root:before {
display: none;
}
ul li.root:after {
display: none;
}
ul li:last-child:after {
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="directoryPanel">
<div class="dir">
<ul id="dirTree">
<li class="root">
File Explorer
</li>
<li>
Want to create a new directory? Click here
<ul>
<li>Click here to upload a file</li>
</ul>
</li>
</ul>
</div>
</div>

Your ul>li structure seems entirely wrong in your jQuery. You have written css for li tags and appending ul tags as childs. That's where it caused the problem. In my answer I added a ul and inside the ul I have multiple li as your dynamic children.
For a clear definition I broke your jQuery into multiple lines which will be easier to read and understand
$("#dirTree").append("<li>Parent Directory</li>");
$("#dirTree").append("<ul id='parent'></ul>");
$("#parent").append("<li>child1</li>");
$("#parent").append("<li>child2</li>");
$("#parent").append("<li>child3</li>");
$("#parent").append("<li>child4</li>");
ul {
margin: 0px 0px 0px 20px;
list-style: none;
line-height: 2em;
font-family: monospace;
}
ul li {
font-size: 13px;
position: relative;
}
ul li:before {
position: absolute;
left: -15px;
top: 0px;
content: '';
display: block;
border-left: 1px solid #ddd;
height: 1em;
border-bottom: 1px solid #ddd;
width: 10px;
}
ul li:after {
position: absolute;
left: -15px;
bottom: -7px;
content: '';
display: block;
border-left: 1px solid #ddd;
height: 100%;
}
ul li.root {
margin: 0px 0px 0px -20px;
}
ul li.root:before {
display: none;
}
ul li.root:after {
display: none;
}
ul li:last-child:after {
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="directoryPanel">
<div class="dir">
<ul id="dirTree">
<li class="root">
File Explorer
</li>
<li>
Want to create a new directory? Click here
<ul>
<li>Click here to upload a file</li>
</ul>
</li>
</ul>
</div>
</div>

Drop down menus hover, but sub menus don't

Hi I've tried searching for this but just can't find the right coding. Can someone help?
This is my site currently in test mode : http://www.rockclick.co.uk/wiss/index.htm .
As you can see I have hoverable menus. But my sub menus under the "Galleries" hover menu don't hover I have to click on them in my PC browser (google chrome). On my iphone the submenus aren't even clickable. (I've added a script to fix the hover bug for IOS).
I'm very reluctant to re-write the whole thing again. Is there an easy fix to just make my sub menus hoverable??
I'm very much a novice at this stuff so any help would be greatly appreciated.
document.addEventListener('click', function(e) {
e = e || window.event;
console.log(e);
var target = e.target || e.srcElement;
console.log(target);
if (target.parentElement.className.indexOf('has-submenu') > -1) {
e.target.classList.toggle('open');
}
}, false);
<!----------------ios-hover-fix----------->
(function(l){var i,s={touchend:function(){}};for(i in s)l.addEventListener(i,s)})(document); // sticky hover fix in iOS
<style>
#menu {background: #F9F3DB; color: #6D6C6B; height: 35px; border-bottom: 0px solid #6D6C6B}
#menu ul,
#menu li {margin: 0 0; padding: 0 0; list-style: none}
#menu ul {height: 35px}
#menu li {float: left; display: inline; position: relative; font: bold 12px Arial; text-shadow: 0 0px 0 #6D6C6B; border-right: 0px solid #444;
border-left: 0px solid #111; text-transform: uppercase}
#menu li:first-child {border-left: none}
#menu a {display: block; line-height: 35px; padding: 0 14px; text-decoration: none; color: #6D6C6B;}
#menu li:hover > a,
#menu li a:hover {background: #F9F3DB}
#menu input { display: none; margin: 0 0; padding: 0 0; width: 80px; height: 35px; opacity: 0; cursor: pointer}
#menu label {font: bold 30px Arial; display: none; width: 35px; height: 36px; line-height: 36px; text-align: center}
#menu label span {font-size: 12px; position: absolute; left: 35px}
#menu ul.menus {height: auto; width: auto; background: #F9F3DB; position: absolute; z-index: 99; display: none; border: 0;}
#menu ul.menus li {display: block; width: 100%; font: 12px Arial; text-transform: none;}
#menu li:hover ul.menus {display: block}
#menu a.home {background: #c00;}
#menu a.prett {padding: 0 27px 0 14px}
#menu a.prett::after {
content: "";
width: 0;
height: 0;
border-width: 5px 6px;
border-style: solid;
border-color: #6D6C6B transparent transparent transparent;
position: absolute;
top: 15px;
right: 9px}
#menu a.prett.open::after {
content: "";
width: 0;
height: 0;
border-width: 6px 5px;
border-style: solid;
border-color: transparent transparent #6D6C6B transparent;
position: absolute;
top: 9px;
right: 9px}
#menu ul.menus a:hover {background: #F9F3DB;}
#menu ul.menus .submenu {display: none; position: absolute; left: 100px; background: #F9F3DB; top: 0; width: 150px;}
#menu ul.menus .submenu li {background: #F9F3DB;}
#menu ul.menus .has-submenu a.open ~ .submenu {display: block;}
</style>
<!------------NAVIGATION-BAR------>
<body>
<nav>
<ul id='menu'>
<li><a class='prett' href='#' title='Galleries'>Galleries</a>
<ul class='menus'>
<li class='has-submenu'><a class='prett' title='Photos'>Photos</a>
<ul class='submenu'>
<li>2017</li>
<li>2016</li>
<li>2015</li>
</ul></li>
<li class='has-submenu'><a class='prett' title='Archives'>Media</a>
<ul class='submenu'>
<li>Press Reports</li>
<li>Archived Press</li>
</ul></li>
<li><a href="team photos.htm" target="iframe" title='Team Photos'>Team Photos</a></li>
<li><a href="videos.htm" target="iframe" title='Videos'>Videos</a></li>
</ul></li>
</nav>
</body>

Consider declaring an additional :hover state rule for nested submenu elements, this can be chained onto the existing submenu :hover state rule, e.g:
#menu li:hover ul.menus, #menu li.has-submenu:hover ul.submenu {
display: block;
}
Code Snippet Demonstration:
document.addEventListener('click', function(e) {
e = e || window.event;
console.log(e);
var target = e.target || e.srcElement;
console.log(target);
if (target.parentElement.className.indexOf('has-submenu') > -1) {
e.target.classList.toggle('open');
}
}, false);
<!----------------ios-hover-fix----------->
(function(l) {
var i, s = {
touchend: function() {}
};
for (i in s) l.addEventListener(i, s)
})(document); // sticky hover fix in iOS
#menu {
background: #F9F3DB;
color: #6D6C6B;
height: 35px;
border-bottom: 0px solid #6D6C6B
}
#menu ul,
#menu li {
margin: 0 0;
padding: 0 0;
list-style: none
}
#menu ul {
height: 35px
}
#menu li {
float: left;
display: inline;
position: relative;
font: bold 12px Arial;
text-shadow: 0 0px 0 #6D6C6B;
border-right: 0px solid #444;
border-left: 0px solid #111;
text-transform: uppercase
}
#menu li:first-child {
border-left: none
}
#menu a {
display: block;
line-height: 35px;
padding: 0 14px;
text-decoration: none;
color: #6D6C6B;
}
#menu li:hover>a,
#menu li a:hover {
background: #F9F3DB
}
#menu input {
display: none;
margin: 0 0;
padding: 0 0;
width: 80px;
height: 35px;
opacity: 0;
cursor: pointer
}
#menu label {
font: bold 30px Arial;
display: none;
width: 35px;
height: 36px;
line-height: 36px;
text-align: center
}
#menu label span {
font-size: 12px;
position: absolute;
left: 35px
}
#menu ul.menus {
height: auto;
width: auto;
background: #F9F3DB;
position: absolute;
z-index: 99;
display: none;
border: 0;
}
#menu ul.menus li {
display: block;
width: 100%;
font: 12px Arial;
text-transform: none;
}
#menu li:hover ul.menus, #menu li.has-submenu:hover ul.submenu {
display: block
}
#menu a.home {
background: #c00;
}
#menu a.prett {
padding: 0 27px 0 14px
}
#menu a.prett::after {
content: "";
width: 0;
height: 0;
border-width: 5px 6px;
border-style: solid;
border-color: #6D6C6B transparent transparent transparent;
position: absolute;
top: 15px;
right: 9px
}
#menu a.prett.open::after {
content: "";
width: 0;
height: 0;
border-width: 6px 5px;
border-style: solid;
border-color: transparent transparent #6D6C6B transparent;
position: absolute;
top: 9px;
right: 9px
}
#menu ul.menus a:hover {
background: #F9F3DB;
}
#menu ul.menus .submenu {
display: none;
position: absolute;
left: 100px;
background: #F9F3DB;
top: 0;
width: 150px;
}
#menu ul.menus .submenu li {
background: #F9F3DB;
}
#menu ul.menus .has-submenu a.open~.submenu {
display: block;
}
<!------------NAVIGATION-BAR------>
<body>
<nav>
<ul id='menu'>
<li>Home</li>
<li>News</li>
<li><a class='prett' href='#' title='Info'>Information</a>
<ul class='menus'>
<li>About Us</li>
<li>Statistics</li>
<li>Downloads</li>
<li>Sponsorship</li>
<li>Race Calendar</li>
<li>Race Results</li>
</ul>
</li>
<li><a class='prett' href='#' title='Info'>Meet The Team</a>
<ul class='menus'>
<li>The Team</li>
<li>The Coaches</li>
<li>The Committee</li>
</ul>
</li>
<li><a class='prett' href='#' title='Galleries'>Galleries</a>
<ul class='menus'>
<li class='has-submenu'><a class='prett' title='Photos'>Photos</a>
<ul class='submenu'>
<li>2017</li>
<li>2016</li>
<li>2015</li>
</ul>
</li>
<li class='has-submenu'><a class='prett' title='Archives'>Media</a>
<ul class='submenu'>
<li>Press Reports</li>
<li>Archived Press</li>
</ul>
</li>
<li><a href="team photos.htm" target="iframe" title='Team Photos'>Team Photos</a></li>
<li><a href="videos.htm" target="iframe" title='Videos'>Videos</a></li>
<li class='has-submenu'><a class='prett' title='Archives'>Archives</a>
<ul class='submenu'>
<li>1980's</li>
<li>1990's</li>
<li>2000's</li>
</ul>
</li>
</ul>
</li>
<li>Contact Us</li>
<li>Links</li>
</ul>
</nav>
</body>

Add the following line to your CSS code. It should fix it.
.menus li a:hover ~ .submenu {display: block !important;}

keep submenu on top and keep contents of div from moving around and size

I am following up on this question and answer:
Sub-menu expanding parent div instead of displaying on top
If there is a div below the menu in the example above, how do you keep 1) that div contents from moving around, and 2) the size of the div from moving around, yet keep it responsive?
For example I forked the js fiddle from the link above and created the div id="mytest". I'd like the menu and the "mytest" div to be completely independent when you hover over the "About Me" link. Here is my fork: http://jsfiddle.net/nXqn8/
Here is the code:
<div id="menu">
<ul>
<li><a id="" class="" href="">Home</a></li>
<li><a id="" class="" href="">About Me</a>
<ul class="sub-menu">
<li>Biography</li>
<li>Photo Galery</li>
<li>Foot Print</li>
</ul>
</li>
<li><a id="" class="" href="">Expertise</a></li>
<li><a id="" class="" href="">Projects</a>
<ul class="sub-menu">
<li>Geo 228 Portal</li>
<li>NEP Application</li>
<li>Geo Address Book</li>
<li>Assets Management</li>
</ul>
</li>
<li><a id="" class="" href="">Contact</a></li>
</ul>
</div>
<div id="mytest"> xxxxxxxxxxxxxxxxxxxxxxxxxx Please stop me from moving around!!! xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx </div>
css:
#menu {
position: relative;
font-size: 0.8em;
margin: 0;
padding: 0;
background-color: #666666;
border-top: 1px solid #999;
border-bottom: 1px solid #999;
overflow: visible;
z-index: 2;
height: 35px;
}
#menu ul {
position: relative;
margin: 0;
padding: 0;
list-style: none;
z-index: 3;
}
#menu li {
display: block;
width: 120px;
float: left;
border-right: 1px solid #999;
z-index: 4;
}
#menu a {
color: #ffffff;
font-weight: bold;
display: block;
text-align: center;
text-decoration: none;
text-transform: uppercase;
margin: 0;
padding: 10px 20px;
}
#menu a:hover {
color: #000000;
margin: 5px 10px;
padding: 5px 10px;
background-color: #C0C0C0;
border-radius: 10px;
}
#menu ul.sub-menu {
display: none;
position: relative;
}
#menu ul.sub-menu li {
width: 200px;
background-color: #C0C0C0;
border-width: 0 1px 1px 1px;
border-style: solid;
border-color: #666666;
}
#menu ul.sub-menu li a {
color: #000;
text-align: center;
margin: 5px 10px;
padding: 5px 10px;
}
#menu ul.sub-menu li a:hover {
color: snow;
background-color: #666666;
}
#menu li:hover ul.sub-menu {
display: block;
z-index: 90;
}
#mytest {
background-color: red;
}
Ultimately, I have after something like the main menus you see at the top of accenture dot com.
Thanks!

#menu li {
position:relative;
}
#menu ul.sub-menu {
display: none;
position: absolute;
left: 0;
top: 100%;
}
#mytest {
float:left;
background-color: red;
width:100%;
text-align: center;
}
DEMO

Define your #menu li position: relative and define your sub menu #menu ul.sub-menu position: absolute; left: 0; top: 100%;
as this css
#menu li {
position:relative;
}
#menu ul.sub-menu {
display: none;
position: absolute;
left: 0;
top: 100%;
}
Demo

Select box option list overlaping on menu

When click on select box then mouse over on menu
Select box option list overlaping on menu.
I have already used z-index property but its not working.
Select box hide but not option list. You can use any ready made menu and put select box at near the place on menu option list always display
CSS :
#navigation {
position: relative;
text-align:center;
margin:0 auto;
background-color:#fff;
}
#navigation li {
position: relative;
list-style: none;
display: inline-block;
padding: 5px 20px;
}
#navigation li a {
padding: 5px;
display: block;
font-family: 'Open Sans', Arial, Helvetica, sans-serif;
font-size: 14px;
font-weight: 700;
color: #3b3b3b;
text-align: left;
text-shadow: 1px 1px 0 rgba(255,255,255,0.25);
}
#navigation li:hover .main {
color: #ee4e1d;
}
#navigation li .sub-nav-wrapper {
display: block;
position: absolute;
z-index: 30;
margin-left: -16px;
}
#navigation li .sub-nav-wrapper .sub-nav {
width: 150px;
margin-top: 4px;
background: #fff;
border-top: 1px solid #fff;
box-shadow: 0 1px 2px rgba(0,0,0,0.35);
-moz-box-shadow: 0 1px 2px rgba(0,0,0,0.35);
-webkit-box-shadow: 0 1px 2px rgba(0,0,0,0.35);
}
#navigation li:hover .sub-nav-wrapper {
display: block;
}
#navigation li .sub-nav-wrapper .sub-nav li {
list-style: none;
display: block;
margin: 0;
padding: 0;
text-align: left;
border-bottom: 1px solid #d7d7d7;
}
#navigation li .sub-nav-wrapper .sub-nav li:first-child {
}
#navigation li .sub-nav-wrapper .sub-nav li:last-child {
border: none;
}
#navigation li .sub-nav-wrapper .sub-nav li a {
display: block;
padding: 11px 20px;
font-size: 12px;
font-weight: 600;
text-shadow: 1px 1px 0 rgba(255,255,255,1.0);
box-shadow: inset 0 0 2px rgba(255,255,255,1.0);
-moz-box-shadow: inset 0 0 2px rgba(255,255,255,1.0);
-webkit-box-shadow: inset 0 0 2px rgba(255,255,255,1.0);
}
#navigation li .sub-nav-wrapper .sub-nav li:hover {
background: #f5f5f5;
border-bottom: 1px solid #3b3b3b;
}
/*****END DROPDOWN*****/
HTML :
<ul id="navigation">
<li>
Home
</li>
<li>
Portfolio
<div class="sub-nav-wrapper"><ul class="sub-nav">
<li>Graphics</li>
<li>Web</li>
<li>Print</li>
</ul></div>
</li>
<li>
Services
<div class="sub-nav-wrapper"><ul class="sub-nav">
<li>Web Design</li>
<li>SEO</li>
<li>Content Writing</li>
</ul></div>
</li>
<li>
Technology
<div class="sub-nav-wrapper"><ul class="sub-nav">
<li>JavaScript</li>
<li>HTML/CSS</li>
<li>Drupal</li>
<li>Joomla</li>
<li>Wordpress</li>
<li>MySQL</li>
<li>Oracle</li>
</ul></div>
</li>
</ul>
<!-----END NAVIGATION----->
<div style="margin:0 auto;width:900px;text-align:center;">
<select name="search_type" id="search-type" >
<option value="Data2">Data1</option>
<option value="Data1">Data1</option>
</select>
</div>

try using a higher value for z-index. It may work. As said by Era u can also use position relative, but if you are using many similar kind of things, every time you should have to change the positions.

try adding :
"position:relative"
to the parent div of menu.

Create a custom drop down select like the one used on twitter when user logs out

I'm trying to create custom drop-down select like the one used on twitter when user logs out and till now I did not succeed :
This is what I achieved but is not working on IE9 :|
http://fiddle.jshell.net/Hz2JH/
<ul id="main">
<li class="username" tabindex="1" >
<a>USER</a>
<ul class="curent_buser">
<li class="help">Help</li>
<li class="logoff">Log Off</li>
</ul>
</li>
</ul>
ul#main {
color: 232323;
width: 120px;
border:2px solid #ccc;
list-style: none;
font-size: 12px;
letter-spacing: -1px;
font-weight: bold;
text-decoration: none;
height:30px;
background:#f1f1f1;
}
ul#main:hover {
opacity: 0.7;
text-decoration: none;
}
#main > li{
background: url('http://cdn1.iconfinder.com/data/icons/crystalproject/24x24/actions/1downarrow1.png') 100% 0 no-repeat;
outline:0;
padding:10px;
}
ul#main li ul {
display: none;
width: 116px;
background: transparent;
border-top: 1px solid #eaeaea;
padding: 2px;
list-style: none;
margin: 7px 0 0 -3px;
}
ul.curent_buser li a {
color: gray;;
cursor: pointer;
}
ul.curent_buser{
background:lime !important;
}
ul#main li ul li a {
display: block;
padding: 5px 0;
position: relative;
z-index: 5;
}
#main li:focus ul, #main li.username:active ul {
display: block;
}
.help{
background: url("http://cdn1.iconfinder.com/data/icons/musthave/16/Help.png") no-repeat 100% center ;
height: 25px;
margin-bottom: 2px;
border-bottom: 1px solid white;
}
.help:hover{
background: #f4f4f4;
}
.logoff{
background: url("http://cdn1.iconfinder.com/data/icons/cc_mono_icon_set/blacks/16x16/on-off.png") no-repeat 100% center ;
height: 25px;
}
.logoff:hover{
background: #f4f4f4 ;
height: 25px;
}
.help a,.logoff a{
color:gray;
font-family: Museo700Regular,sans-serif;
letter-spacing: 0;
font-size: small;
}
​
So how can I build a custom select like the one used on twitter?

This works for me, doesnt require a click to get the drop down. Just add li elements to put the custom images on each menu item. Straight CSS and works on all browsers I have tested, if you find a browser that doesnt work let me know please.
#addMenu, #addMenu ul {
list-style: none;
}
#addMenu {
float: left;
}
#addMenu > li {
float: left;
}
#addMenu li a {
display: block;
padding: 0 8px;
text-decoration: none;
}
#addMenu ul {
position: absolute;
display: none;
z-index: 999;
}
#addMenu ul li a {
width: 70px;
color: #000;
font-weight: bold;
}
#addMenu li:hover ul.noJS {
display: block;
background: #ccc;
color: #000;
}
#addMenu ul li:hover a {
background: #ddd;
}
HTML
<ul id='addMenu'>
<li>
<a href='#'>MENU</a>
<ul class='noJS'>
<li><a href='URL'>Option1</a></li>
<li><a href='URL'>Option2</a></li>
<li><a href='URL'>Option3</a></li>
<li><a href='URL'>Option4</a></li>
</ul>
</li>
</ul>