关键知识
1.box-sizing: border-box;不可继承
2.浮动布局:子元素float:left;
3.清除浮动的方式
.row:before,
.row:after {
content:"";
display:table;
clear:both;
}
4.媒体查询：@media（min-width:768px）{
.col-md-1 {
background:red;
}}
5.calc使用方法
width: calc(8.3% - 20px);
我的代码
<!DOCTYPE html>
<html>
<head>
<title>IFE08</title>
<meta charset="utf-8">
<link rel="stylesheet" type="text/css" href="css/normalize.css">
<link rel="stylesheet" href="css/IFE08.css">
</head>
<body>
<div class="container">
<div class="row">
<div class="col-md-4">col-md-4</div>
<div class="col-md-4">col-md-4</div>
<div class="col-md-4">col-md-4</div>
</div>
<div class="row">
<div class="col-md-3">col-md-3</div>
<div class="col-md-6">col-md-6</div>
<div class="col-md-3">col-md-3</div>
</div>
<div class="row">
<div class="col-md-1">col-md-1</div>
<div class="col-md-1">col-md-1</div>
<div class="col-md-2">col-md-2</div>
<div class="col-md-2">col-md-2</div>
<div class="col-md-6">col-md-6</div>
</div>
</div>
</body>
</html>
.container {
padding: 10px;
}
.row {
margin-bottom: 20px;
}
.row > div {
border: solid 1px #999;
background: #eee;
height: 50px;
margin: 10px;
box-sizing: border-box;
}
.row:before,
.row:after {
content:"";
display:table;
clear:both;
}
@media (min-width: 768px) {
.col-md-1 {
width: calc(8.333333% - 20px);
}
.col-md-2 {
width: calc(16.6666667% - 20px);
}
.col-md-3 {
width: calc(25% - 20px);
}
.col-md-4 {
width: calc(33.3333333% - 20px);
}
.col-md-6 {
width: calc(50% - 20px);
}
.col-md-1,
.col-md-2,
.col-md-3,
.col-md-4,
.col-md-6 {
float: left;
}
}
**粗体** _斜体_ [链接](http://example.com) `代码` - 列表 > 引用。你还可以使用@来通知其他用户。