相对定位 绝对定位
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>相对定位绝对定位</title>
<style type="text/css">
.parent{
/*800*400,边框10像素红色,水平居中*/
margin: 100px auto;
width: 800px;
height: 400px;
border: 10px solid red;
position: relative;
}
.son{
/*100*100,蓝色背景*/
width: 400px;
height: 200px;
background-color: skyblue;
position: absolute;
left: 400px;
top: 0px;
}
.son1{
/*100*100,蓝色背景*/
width: 400px;
height: 200px;
background-color: aquamarine;
position: absolute;
left: 400px;
top: 200px;
}
.son2{
/*100*100,蓝色背景*/
width: 400px;
height: 200px;
background-color:thistle;
position: absolute;
}
.son3{
/*100*100,蓝色背景*/
width: 400px;
height: 200px;
background-color:hotpink;
position: absolute;
left: 0px;
top: 200px;
}
</style>
</head>
<body>
<div class="parent">
<div class="son"></div>
<div class="son1"></div>
<div class="son2"></div>
<div class="son3"></div>
</div>
</body>
</html>
盒子
<body>
<div class="parent">
<div class="son"></div>
<div class="son1"></div>
<div class="son2"></div>
<div class="son3"></div>
</div>
</body>
