为了去除浮动溢出,设置了container的overflow:hidden;最后为什么凸出来一块
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
/*此处写代码*/
*{margin: 0;padding: 0;color: white;font-size: 18px;}
/* body{min-width: ;} */
div.header{
height: 100px;
width: 100%;
background: black;
}
.logo{
float: left;
font-size: 0;
}
.nav{
float: right;
}
.nav li{float: left;list-style: none;padding:0 20px;line-height: 100px;height: 100px;}
.nav li:hover{color: orange;cursor: pointer;}
.container{
background: green;
width: 100%;
padding: 0 100px 0 100px;
overflow: hidden;
}
.middle,.left,.right{
/* position: relative; */
float: left;
min-height: 500px;
}
.middle{
background: #FFC0CB;
text-align: center;
width: 100px;
font-size: 0;
}
.middle img{vertical-align: middle;}
/* .middle img{position: absolute;top: 0;right: 0;bottom: 0;left: 0;margin: auto;} */
.left{
width: 200px;
background: #FFEFDB;
}
.right{
width: 200px;
background: #ADD8E6;
}
.footer{height: 100px;width: 100%;background: black;}
.footer ul{height: 100px;line-height: 100px;margin:0 auto;width: 60%;}
.footer ul li{list-style: none;float: left;padding:0 20px 0 20px;}
</style>
</head>
<body>
<!-- 此处写代码 -->
<div class="header">
<div class="logo">
<img src="http://img1.sycdn.imooc.com/climg//590037f600016ce303000100.png" alt="">
</div>
<ul class="nav">
<li>课程</li>
<li>职业路径</li>
<li>实战</li>
<li>猿问</li>
<li>手记</li>
</ul>
</div>
<div class="container">
<div class="middle">
<!-- <img src="http://img1.sycdn.imooc.com/climg//590037e00001fab706000400.jpg" alt=""> -->
</div>
<!-- <div class="left"></div>
<div class="right"></div> -->
</div>
<div class="footer">
<ul>
<li>网站首页</li>
<li>企业合作</li>
<li>人才招聘</li>
<li>联系我们</li>
<li>常见问题</li>
<li>友情链接</li>
</ul>
</div>
</body>
</html>
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因为padding的左右值和left、right的宽度不一致导致的,建议修改如下:


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