Css3操作响应式布局
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
*{padding: 0;margin: 0;}
html,body{width: 100%;height: 100%;background:url(img/bj.jpg) ;background-size: 100% 100%;}
#nav{width: 560px;height:40px ;margin: 10px auto;}
ul,li{list-style: none;}
.list{width: 560px;height: 40px;background: #fff;}
.list li{width: 50px;height: 40px;margin: 0 10px;float: left;
transition: all 1s;
}
.list li:nth-child(1){
background: url(img/1.png) top;
}
.list li:nth-child(2){
background: url(img/2.png) top;
}
.list li:nth-child(3){
background: url(img/3.png) top;
}
.list li:nth-child(4){
background: url(img/4.png) top;
}
.list li:nth-child(5){
background: url(img/5.png) top;
}
.list li:nth-child(6){
background: url(img/6.png) top;
}
.list li:nth-child(7){
background: url(img/7.png) top;
}
.list li:nth-child(8){
background: url(img/8.png) top;
}
.list li:hover{
background-position: bottom;
}
@media only screen and (min-width: 640px) and (max-width: 980px) {
#nav{position: fixed;top:100px;left:10px;width: 50px;height:400px ;margin: 10px auto;}
ul,li{list-style: none;}
.list{width: 67px;height: 400px;background: #fff;}
.list li{width: 50px;height: 40px;margin: 0 10px;float: left;
transition: all 1s;
}
}
@media only screen and (min-width: 100px) and (max-width: 640px) {
#nav{position: fixed;top:100px;left:10px;width: 50px;height:400px ;margin: 10px auto;}
ul,li{list-style: none;}
.list{width: 67px;height: 400px;background: red;}
/*.list li{width: 50px;height: 40px;margin: 0 10px;float: left;
transition: all 1s;
background: #fff;
}*/
.list li:nth-child(1){
background: url(img/1.png) top;
}
.list li:nth-child(2){
background: url(img/2.png) top;
}
.list li:nth-child(3){
background: url(img/3.png) top;
}
.list li:nth-child(4){
background: url(img/4.png) top;
}
.list li:nth-child(5){
background: url(img/5.png) top;
}
.list li:nth-child(6){
background: url(img/6.png) top;
}
.list li:nth-child(7){
background: url(img/7.png) top;
}
.list li:nth-child(8){
background: url(img/8.png) top;
}
.list li:hover{
background-position: bottom;
}
.list li{width: 50px;height: 40px;margin: 0 10px;float: left;
transition: all 1s;
border-radius: 50%;
}
}
</style>
</head>
<body>
<div id="nav">
<ul class="list">
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
</ul>
</div>
</body>
</html>
效果截图
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