Dynamic Drive CSS Library- Multi-Level Dropline Menu Tabs

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Multi-Level Dropline Menu Tabs

Author: Dynamic Drive

These CSS only Dropline tabs support infinite levels of sub menus, putting even many of its JavaScript counterparts to shame. CSS3 transform adds a nice "fold in" effect to reveal the sub menus. On the all important issue of browser support, Dropline Menu Tabs works in all modern and mobile browsers, including IE9+.

Demo:

The CSS:

<link href="http://fonts.googleapis.com/css?family=Bitter&subset=latin" rel="stylesheet" type="text/css">

<style>

.droplinetabs{
    position: relative;
    background: white;
    text-align: left; /* set to left, center, or right */
    font: bold 16px 'Bitter', sans-serif; /* use google font */
}

.droplinetabs *{
  -webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;
}

.droplinetabs a{
    text-decoration: none;
    color: black;
    display: inline-block;
    font-weight: bold;
    padding: 12px;
    position: relative;
}

.droplinetabs, .droplinetabs ul{
    list-style: none;
    margin: 0;
    padding: 0;
	-webkit-perspective: 1000px;
	perspective: 1000px;
    -webkit-perspective-origin: 50% 0%;
	perspective-origin: 50% 0%;
}

/* Top Level LI style */
.droplinetabs > li{
}

/* Top Level link style */
.droplinetabs > li > a{
    border-radius: 10px 10px 0 0;
    background: #BADBF2;
    text-transform: uppercase;
}

/* Top Level link style on hover and when active */
.droplinetabs li:hover > a {
    background: #dae9f4;
}

.droplinetabs li{
    display: inline;
}

/* drop line ULs style */
.droplinetabs ul{
    background: #f8ecc9;
    position: absolute;
    left: -5000px;
    width: 100%;
    opacity: 0;
    padding: 10px 0;
    top: auto;
    border: 1px solid #ddd;
    box-shadow: 0 3px 5px #eee;
    -webkit-transform: rotateX(-70deg);
    transform: rotateX(-70deg);
    backface-visibility: hidden;
    -webkit-transform-origin: 50% 0;
    transform-origin: 50% 0;
    -webkit-transition: opacity .3s, -webkit-transform .5s, visibility 0s .3s, left 0s .3s;
    transition: opacity .3s, transform .5s, visibility 0s .3s, left 0s .3s;
}

/* Reveal sub menu on hover */
.droplinetabs li:hover > ul{
    opacity: 1;
    left: 0;
    top: auto;
    z-index: 1000;
    -webkit-transform: rotateX(0deg);
    transform: rotateX(0deg);
    -webkit-transition: opacity .5s, -webkit-transform .5s;
    transition: opacity .5s, transform .5s;
}

.droplinetabs ul li{
    display: inline;
}

/* Sub Levels link style on hover and when active */

.droplinetabs ul li:hover > a {
    background: #f9d423;
    border-radius: 10px;
}

/* LIs with a sub UL style */
.droplinetabs li > a {
    /* add padding to accomodate arrow inside LIs */
    padding-right: 30px;
}

/* LIs with NO sub UL style */
.droplinetabs li > a:only-child {
    /* undo padding for non submenu LIs */
    padding-right: 15px;
}


/* Arrow for LIs with sub ULs */
.droplinetabs li > a:after {
    /* add arrow inside LIs */
    content: "";
    position: absolute;
    height: 0;
    width: 0;
    border: 5px solid transparent;
    border-top-color: black;
    top: 45%;
    right: 8px;
}


/* LIs with NO sub UL pseudo class */
.droplinetabs li > a:only-child:after {
    /* undo arrow for non submenu LIs */
    display: none;
}

/* ####### responsive layout CSS ####### */

@media (max-width: 720px) {
/* Top Level link style */
    .droplinetabs > li > a{
       border-radius: 0;
       margin-top: 5px;
    }
    
}

</style>

The HTML:

<ul class="droplinetabs">
<li><a href="#">Item 1</a></li>
<li><a href="javascript:vold(0)">Folder 1</a>
  <ul>
	  <li><a href="#">Sub Item 1.1</a></li>
	  <li><a href="#">Sub Item 1.2</a></li>
	  <li><a href="#">Sub Item 1.3</a></li>
	  <li><a href="#">Sub Item 1.4</a></li>
	  <li><a href="#">Sub Item 1.2</a></li>
	  <li><a href="#">Sub Item 1.3</a></li>
	  <li><a href="#">Sub Item 1.4</a></li>
  </ul>
</li>
<li><a href="javascript:vold(0)">Folder 2</a>
  <ul>
	  <li><a href="#">Sub Item 2.1</a></li>
	  <li><a href="#">Sub Item 2.2</a></li>
	  <li><a href="javascript:vold(0)">Folder 2.3</a>
	    <ul>
		    <li><a href="#">Sub Item 2.3.1</a></li>
		    <li><a href="#">Sub Item 2.3.2</a></li>
		    <li><a href="#">Sub Item 2.3.3</a></li>
		    <li><a href="#">Sub Item 2.3.4</a></li>
			</ul>
		</li>
	  <li><a href="#">Sub Item 2.4</a></li>
	  <li><a href="#">Sub Item 2.5</a></li>
	  <li><a href="#">Sub Item 2.6</a></li>
	  <li><a href="#">Sub Item 2.7</a></li>
  </ul>
</li>
<li><a href="#">Item 3</a></li>
<li><a href="javascript:vold(0)">Folder 3</a>
  <ul>
	  <li><a href="#">Sub Item 3.1</a></li>
	  <li><a href="javascript:vold(0)">Folder 3.2</a>
	    <ul>
		    <li><a href="#">Sub Item 3.2.1</a></li>
		    <li><a href="#">Sub Item 3.2.2</a></li>
		    <li><a href="javascript:vold(0)">Folder 3.2.3</a>
					<ul>
			    		<li><a href="#">Sub Item 3.2.3.1</a></li>
			    		<li><a href="#">Sub Item 3.2.3.2</a></li>
			    		<li><a href="#">Sub Item 3.2.3.3</a></li>
			    		<li><a href="#">Sub Item 3.2.3.4</a></li>
			    		<li><a href="#">Sub Item 3.2.3.5</a></li>
					</ul>
		    </li>
		    <li><a href="#">Sub Item 3.2.4</a></li>
	    </ul>
	  </li>
  </ul>
</li>
<li><a href="https://twitter.com/ddrivegeorge">Twitter</a></li>
</ul>

Code Info

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Date Posted: 10/18/2016

Revision History: None

Usage Terms: Click here