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纯html+css导航下拉菜单代码

纯html+css导航下拉菜单代码,没有用任何的修饰图片和JavaScript代码,不过兼容性方面做的不是太好,只适用于chrome和firefox浏览器,IE下会有问题,因此测试时除上述两种浏览器外请不要用别的浏览器。<!DOCTYPE HTML> <html> <head> <meta charset="UTF-8" /> <title>纯html+css导航</title> <!-- mulder --> <!-- qq:10221408 --> <!-- 只支持 chrome firefox --> <style> *{ margin:0; padding:0; } .clear:after { clear: both; content: "."; display: block; height: 0; visibility: hidden; } nav{ display:inline-block; border:1px solid #505255; border-bottom: 1px solid #282C2F; -moz-border-radius: 5px; -webkit-border-radius: 5px; margin:50px; -webkit-box-shadow:1px 1px 3px #292929; -moz-box-shadow:1px 1px 3px #292929; } li{ list-style:none; float:left; border-right: 1px solid #2E3235; position: relative; /*background: -moz-linear-gradient(top, #fff, #555D5F 2% ,#555D5F 50%,#3E4245 100%); background: -webkit-gradient(linear, 0 0, 0 100%, from(#fff), color-stop(2%, #555D5F), color-stop(50%, #555D5F),to(#3E4245));*/ background:#555D5F; } li:hover{ /*background: -moz-linear-gradient(top, #fff, #3E4245 2% ,#555D5F 80%,#555D5F 100%); background: -webkit-gradient(linear, 0 0, 0 100%, from(#fff), color-stop(2%, #3E4245), color-stop(80%, #3E4245),to(#555D5F));*/ background:#3E4245; -moz-transition: background 1s ease-out; -webkit-transition: background 1s ease-out; } li a{ display:block; height:40px; line-height:40px; padding:0 30px; font-size:12px; color:#fff; text-shadow: 0px -1px 0px #000; text-decoration:none; white-space:nowrap; border-left: 1px solid #999E9F; border-top: 1px solid #999E9F; -moz-border-top-left-radius: 2px; -webkit-border-top-left-radius: 2px; z-index:100; } li > a{ position:relative; } li.first a{ -moz-border-radius-topleft: 4px; -moz-border-radius-bottomleft: 4px; -webkit-border-top-left-radius: 4px; -webkit-border-bottom-left-radius: 4px; } li.last{ border-right: 0 none; } dl{ position:absolute; display:block; top:40px; left: -25px; width:165px; background:#222222; -moz-border-radius: 5px; -webkit-border-radius: 5px; -webkit-box-shadow:1px 1px 3px #292929; -moz-box-shadow:1px 1px 3px #292929; z-index:10; } li:hover dl{ top:50px; display:block; width:145px; padding:10px; } dl a{ background:transparent; border:0 none; -moz-border-radius: 5px; -webkit-border-radius: 5px; -moz-transition: background 0.5s ease-out; -webkit-transition: background 0.5s ease-out; z-index:50; } dl a:hover{ color:#FFF; background:#999E9F; -moz-transition: background 0.3s ease-in-out, color 0.3s ease-in-out; -webkit-transition: background 0.3s ease-in-out, color 0.3s ease-in-out; } dd{ margin-top:-40px; opacity:0; width:145px; -webkit-transition-property:all; /*-webkit-transition-timing-function: cubic-bezier(5,0,5,0);*/ -moz-transition-property: all; /*-moz-transition-timing-function: cubic-bezier(5,0,5,0);*/ /*-webkit-transition-delay:5s; -moz-transition-delay:5s;*/ } li:hover dd{ margin-top:0; opacity:1; } li dd:nth-child(1){ -webkit-transition-duration: 0.1s; -moz-transition-duration: 0.1s; } li dd:nth-child(2){ -webkit-transition-duration: 0.2s; -moz-transition-duration: 0.2s; } li dd:nth-child(3){ -webkit-transition-duration: 0.3s; -moz-transition-duration: 0.3s; } li dd:nth-child(4){ -webkit-transition-duration: 0.4s; -moz-transition-duration: 0.4s; } dt{ display:none; margin-top:-25px; padding-top:15px; height:10px; } li:hover dt{ display:block; } .Darrow{ float:right; margin:18px 10px 0 0; border-width:5px; border-color:#FFF transparent transparent transparent; border-style:solid; width:0; height:0; line-height:0; overflow:hidden; cursor:pointer; text-shadow: 0px -1px 0px #000; -webkit-box-shadow:0px -1px 0px #000; -moz-box-shadow:0px -1px 0px #000; } .arrow{ margin:0 auto; margin-top:-5px; display:block; width:10px; height:10px; background:#222222; -webkit-transform: rotate(45deg); -moz-transform: rotate(45deg); } </style> </head> <body> <nav> <ul class="clear"> <li class="first"><a href="#">菜单一</a></li> <li> <span class="Darrow"></span> <a href="#">菜单二</a> <dl> <dt><span class="arrow"></span></dt> <dd><a href="#">子菜单一</a></dd> <dd><a href="#">子菜单二</a></dd> <dd><a href="#">子菜单三子菜单三</a></dd> </dl> </li> <li> <span class="Darrow"></span> <a href="#">菜单三</a> <dl> <dt><span class="arrow"></span></dt> <dd><a href="#">子菜单一</a></dd> <dd><a href="#">子菜单二</a></dd> <dd><a href="#">子菜单三子菜单三</a></dd> </dl> </li> <li> <span class="Darrow"></span> <a href="#">菜单四</a> <dl> <dt><span class="arrow"></span></dt> <dd><a href="#">子菜单一</a></dd> <dd><a href="#">子菜单二</a></dd> <dd><a href="#">子菜单三</a></dd> <dd><a href="#">子菜单四</a></dd> </dl> </li> <li><a href="#">菜单五</a></li> <li><a href="#">菜单六</a></li> <li><a href="#">菜单七</a></li> <li class="last"><a href="#">菜单八</a></li> </ul> </nav> </body> </html>