Pure CSS DropDown Menu

index.html

<div id="container">
    <nav>
        <ul class="main-nav main-nav__level1">
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            <!-- First Tier Drop Down -->
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            </li>
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            <!-- First Tier Drop Down -->
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            	<!-- Second Tier Drop Down -->
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                        <!-- Third Tier Drop Down -->
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        </ul>
    </nav>
  <h1>Pure CSS Drop Down Menu</h1>
<p> A simple dropdown navigation menu made with CSS Only. Dropdowns are marked with a plus sign ( + )</p>
<p>Read tutorial <a target="_blank" href="http://webdesignerhut.com/css-dropdown-menu/">here</a></p>
  <p>The code in <strong>this</strong> fork of the pen is modified, so it isn't an exact copy of the code, provided in the article.</p>
</div>

pure-css-dropdown-menu.markdown

Pure CSS DropDown Menu

A simple example of a dowpdown menu made with only CSS3 and HTML

A Pen by Jens Grochtdreis on CodePen.

License.

style.css

/* CSS Document */

@import url(https://fonts.googleapis.com/css?family=Open+Sans);
@import url(https://fonts.googleapis.com/css?family=Bree+Serif);

body {
	background: #212121;
	font-size:22px;
	line-height: 32px;
	color: #ffffff;
	word-wrap:break-word !important;
	font-family: 'Open Sans', sans-serif;
	}

h1 {
	font-size: 60px;
	text-align: center;
	color: #FFF;
}	

h3 {
	font-size: 30px;
	text-align: center;
	color: #FFF;
}

h3 a {
	color: #FFF;
}

a {
	color: #FFF;
}

h1 {
	margin-top: 100px;
	text-align:center;
	font-size:60px;
	font-family: 'Bree Serif', 'serif';
	}

#container {
	margin: 0 auto;
}

p {
	text-align: center;
}

nav {
	margin: 50px 0;
	background-color: #E64A19;
}

/* =============================== 
  Besser allgemein und kurz halten, 
  als jedes einzelne Vorkommnis individuell behandeln! 
  ================================ */

.main-nav, .main-nav ul {
	padding: 0;
  margin: 0;
	list-style: none;
	position: relative;
}
	
.main-nav a {
	display:block;
	padding:0 10px;	
	color:#FFF;
	font-size:20px;
	line-height: 60px;
	text-decoration:none;
}

.main-nav a:hover,
.main-nav a:focus{ 
	background-color: #000000; 
}

/* Display Dropdowns on Hover */
.main-nav li:hover > ul,
.main-nav li:focus > ul{
	display:inherit;
}

/* Hide Dropdowns by Default */
.main-nav ul {
	display: none;
	position: absolute; 
	top: 60px; /* the height of the main nav */
}
	
/* Change this in order to change the Dropdown symbol */
.main-nav a:after { content:  ' +'; }
.main-nav a:only-child:after { content: ''; }


.main-nav {}
.main-nav__level1 {}
.main-nav__level1-item {
  display:inline-block;
	background-color: #E64A19;
}
.main-nav__level1-link {}

/* First Tier Drop Down */
.main-nav__level2 {}
.main-nav__level2-item,
.main-nav__level3-item,
.main-nav__level4-item {
  min-width:170px;
	float:none;
	display:block;
	position: relative;
	background-color: #E64A19;
}
.main-nav__level2-link {}

/* Second Tier Drop Down */
.main-nav__level3 {}
.main-nav__level3-item {
  position: relative;
	top:-60px; 
	left:170px;
}
.main-nav__level3-link {}

/* Third Tier Drop Down */
.main-nav__level4 {}
.main-nav__level4-item {
  position: relative;
	top:-60px; 
	left:170px;
}
.main-nav__level4-link {}