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绝对定位元素的写法（十字架）
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>绝对定位元素的写法</title>
</head>
<style>
*{
margin: 0;
padding: 0;
}
.box{
width: 600px;
height: 600px;
margin: 0 auto;
position: relative;;
}
.box1,.box2,.box3,.box4,.box5{
width: 200px;
height: 200px;
background: #efefef;
text-align: center;
line-height: 200px;
position: absolute;
}
.box1{
left: 200px;
top: 0;
}
.box2{
left: 0px;
top: 200px;
}
.box3{
left: 200px;
top: 200px;
background: #e3e3e3;
}
.box4{
left: 400px;
top: 200px;
}
.box5{
left: 200px;
top: 400px;
}
</style>
<body>
<div class="box">
<div class="box1">1</div>
<div class="box2">2</div>
<div class="box3">3</div>
<div class="box4">4</div>
<div class="box5">5</div>
</div>
</body>
</html>点击 "运行实例" 按钮查看在线实例
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