div垂直居中
程序员文章站
2022-04-24 22:34:31
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方法一：absolute 写法
<div style="width:200px;height:200px;border:2px solid #000;position:relative;">
<div style="width:100px;height:100px;margin: auto;position: absolute;top: 0;left: 0;bottom: 0;right: 0;background: red;"></div>
</div>
方法二：absolute 写法
<div style="width:200px;height:200px; border:2px solid #000;position:relative;">
<div style="width:100px;height:100px;margin:auto;position:absolute;left:50%;top:50%;margin-left: -50px;margin-top:-50px;background-color: red;"></div>
</div>
方法三：table方法
<div style="width:200px;height:200px;border:2px solid #000;display:table-cell;vertical-align:middle;text-align: center;">
<div style="width:100px;height:100px;display:inline-block;background-color: red;"></div>
</div>
方法四：flex方法
<div style="width:200px;height:200px; border:2px solid #000;display:flex;justify-content:center;align-items:center;">
<div style="width:100px;height:100px;background-color: red;"></div>
</div>
附上述全部代码：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Page Title</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<div style="width:200px;height:200px;border:2px solid #000;position:relative;">
<div style="width:100px;height:100px;margin: auto;position: absolute;top: 0;left: 0;bottom: 0;right: 0;background: red;"></div>
</div>
<br>
<div style="width:200px;height:200px; border:2px solid #000;position:relative;">
<div style="width:100px;height:100px;margin:auto;position:absolute;left:50%;top:50%;margin-left: -50px;margin-top:-50px;background-color: red;"></div>
</div>
<br>
<div style="width:200px;height:200px;border:2px solid #000;display:table-cell;vertical-align:middle;text-align: center;">
<div style="width:100px;height:100px;display:inline-block;background-color: red;"></div>
</div>
<br>
<div style="width:200px;height:200px; border:2px solid #000;display:flex;justify-content:center;align-items:center;">
<div style="width:100px;height:100px;background-color: red;"></div>
</div>
</body>
</html>
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