纯CSS实现的下拉菜单

实现效果

实现代码

ht ML

<div id="cont ai ner">
    <nav>
        <ul>
            <li><a  hr ef=" # ">Home</a></li>
            <li><a href="#">Word Press </a>
            <!--  First  Tier Drop Down -->
            <ul>
                <li><a href="#">Themes</a></li>
                <li><a href="#">Plu gin s</a></li>
                <li><a href="#">Tutorials</a></li>
            </ul>        
            </li>
            <li><a href="#">Web Design</a>
            <!-- First Tier Drop Down -->
            <ul>
                <li><a href="#">Resources</a></li>
                <li><a href="#">Links</a></li>
                <li><a href="#">Tutorials</a>
            	<!-- Second Tier Drop Down -->
                <ul>
                    <li><a href="#">HTML/CSS</a></li>
                    <li><a href="#"> jq uery</a></li>
                    <li><a href="#">Other</a>
                        <!-- Third Tier Drop Down -->
                        <ul>
                            <li><a href="#">Stuff</a></li>
                            <li><a href="#">Things</a></li>
                            <li><a href="#">Other Stuff</a></li>
                        </ul>
                    </li>
                </ul>
                </li>
            </ul>
            </li>
            <li><a href="#">Graphic Design</a></li>
            <li><a href="#">Inspiration</a></li>
            <li><a href="#">Contact</a></li>
            <li><a href="#">About</a></li>
        </ul>
    </nav>
  < h1 >Pure CSS Drop Down Menu</h1>
<p> A simple dropdown navigation menu made w IT h CSS Only. Dropdowns are marked with a plus sign ( + )</p>
</div>

css

/* CSS Document */

@import url(https://fonts. GOOGLE apis .COM /css?f ami ly=O PE n+Sans);
@import url(https://fonts.googleapis测试数据/css?f am ily= br ee+Serif);

body {
	background: #212121;
	font- Size: 22px;
	line-h ei ght: 32px;
	color: #ffffff;
	word-wrap:break-word !important;
	font-family: 'Open Sans', sans -s erif;
	}

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 {
	m arg in -t op: 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;
}

nav ul {
	padding: 0;
  margin: 0;
	list-style: none;
	position: relative;
	}
	
nav ul li {
	dis play :inline-block;
	background-color: #E64A19;
	}

nav a {
	display:block;
	padding:0 10px;	
	color:#FFF;
	font-size:20px;
	line-height: 60px;
	text-decoration:none;
}

nav a:hover { 
	background-color: #000000; 
}

/* Hide Dropdowns by Default */
nav ul ul {
	display: none;
	position: absolute; 
	top: 60px; /* the height of the main nav */
}
	
/* Display Dropdowns on Hover */
nav ul li:hover > ul {
	display:inherit;
}
	
/* Fisrt Tier Dropdown */
nav ul ul li {
	width:170px;
	float:none;
	display:list -i tem;
	position: relative;
}

/* Second, Third and more Tiers	*/
nav ul ul ul li {
	position: relative;
	top:-60px; 
	left:170px;
}

	
/* Change this in order to change the Dropdown symbol */
li > a :after  { content:  ' +'; }
li > a:only-child:after { content: ''; }

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