导航是WEB页面中不可或缺的一部分，以前制作渐变、圆角类型的导航，都需要使用背景图片来制作，今天给大家介绍一个使用CSS3制作的导航效果，在这个实例中主要运用了CSS3的渐变和box-shadow。

demodownload

HTML Code:

<ul id="nav">
  <li class="current"><a href="#">Home</a></li>
  <li><a href="#">About</a></li>
  <li><a href="#">Blog</a></li>
  <li><a href="#">Contact</a></li>
</ul>

CSS Code:

*{
 margin: 0;
 padding: 0;
}
body {
 background-color: #434343;
 color: #fff;
 font-family: 'Courgette', cursive;
 padding: 50px;
 text-align: center;
}
#nav:after,
#nav:before {
 content:"";
 display: table;
}
#nav:after {
 clear:both;
 overflow:hidden;
}
#nav {
 zoom: 1;
 width:430px;
 padding: 10px 20px;
 margin: 100px auto;
 background-color: #4c505b; /* Old browsers */
 /* IE9 SVG, needs conditional override of 'filter' to 'none' */
 background-image: url(data:image/svg+xml;base64,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);
 background-image: -moz-linear-gradient(top,  #4c505b 0%, #383b44 50%, #32343c 51%, #212227 100%); /* FF3.6+ */
 background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#4c505b), color-stop(50%,#383b44), color-stop(51%,#32343c), color-stop(100%,#212227)); /* Chrome,Safari4+ */
 background-image: -webkit-linear-gradient(top,  #4c505b 0%,#383b44 50%,#32343c 51%,#212227 100%); /* Chrome10+,Safari5.1+ */
 background-image: -o-linear-gradient(top,  #4c505b 0%,#383b44 50%,#32343c 51%,#212227 100%); /* Opera 11.10+ */
 background-image: -ms-linear-gradient(top,  #4c505b 0%,#383b44 50%,#32343c 51%,#212227 100%); /* IE10+ */
 background-image: linear-gradient(to bottom,  #4c505b 0%,#383b44 50%,#32343c 51%,#212227 100%); /* W3C */
 filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#4c505b', endColorstr='#212227',GradientType=0 ); /* IE6-8 */
 border: 1px solid #1e1e1e;
 border-radius: 8px;
 box-shadow:inset 0 1px 0 rgb(115, 122, 140), inset -1px 0 0 rgb(80, 83, 96),inset 0 -1px 0 rgb(47, 50, 57), inset 1px 0 0 rgb(78, 82, 94), 1px 2px 3px rgb(28, 28, 28); 
}
#nav li {
 float: left;
 display: inline;
}
#nav a {
 display: block;
 float: left;
 color: #fff;
 text-decoration: none;
 font-weight: bold;
 padding: 5px 15px;
 border: 1px solid #18191d;
 margin: 0 15px;
 border-radius: 5px;
 box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.14),0 1px 1px rgba(255, 255, 255, 0.15);
 background-color: rgb(59,64,79); /* Old browsers */
 /* IE9 SVG, needs conditional override of 'filter' to 'none' */
 background-image: url(data:image/svg+xml;base64,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);
 background-image: -moz-linear-gradient(top,  rgba(59,64,79,1) 0%, rgba(21,23,29,1) 100%); /* FF3.6+ */
 background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(59,64,79,1)), color-stop(100%,rgba(21,23,29,1))); /* Chrome,Safari4+ */
 background-image: -webkit-linear-gradient(top,  rgba(59,64,79,1) 0%,rgba(21,23,29,1) 100%); /* Chrome10+,Safari5.1+ */
 background-image: -o-linear-gradient(top,  rgba(59,64,79,1) 0%,rgba(21,23,29,1) 100%); /* Opera 11.10+ */
 background-image: -ms-linear-gradient(top,  rgba(59,64,79,1) 0%,rgba(21,23,29,1) 100%); /* IE10+ */
 background-image: linear-gradient(to bottom,  rgba(59,64,79,1) 0%,rgba(21,23,29,1) 100%); /* W3C */
 filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#3b404f', endColorstr='#15171d',GradientType=0 ); /* IE6-8 */
}
#nav a:hover,
#nav .current a {
 background-color: rgb(56,61,75); /* Old browsers */
 /* IE9 SVG, needs conditional override of 'filter' to 'none' */
 background-image: url(data:image/svg+xml;base64,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);
 background-image: -moz-linear-gradient(top,  rgba(56,61,75,1) 0%, rgba(21,23,29,1) 100%); /* FF3.6+ */
 background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(56,61,75,1)), color-stop(100%,rgba(21,23,29,1))); /* Chrome,Safari4+ */
 background-image: -webkit-linear-gradient(top,  rgba(56,61,75,1) 0%,rgba(21,23,29,1) 100%); /* Chrome10+,Safari5.1+ */
 background-image: -o-linear-gradient(top,  rgba(56,61,75,1) 0%,rgba(21,23,29,1) 100%); /* Opera 11.10+ */
 background-image: -ms-linear-gradient(top,  rgba(56,61,75,1) 0%,rgba(21,23,29,1) 100%); /* IE10+ */
 background-image: linear-gradient(to bottom,  rgba(56,61,75,1) 0%,rgba(21,23,29,1) 100%); /* W3C */
 filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#383d4b', endColorstr='#15171d',GradientType=0 ); /* IE6-8 */
 box-shadow:0 1px 1px rgba(255, 255, 255, 0.15);   
}

demodownload

如需转载，烦请注明出处：http://www.w3cplus.com/demo/css3-nav-menu.html