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CSS 弹性布局 flex

程序员文章站 2022-04-30 09:09:46
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弹性布局 display:flex;
居中等分 justify-content:center;
布局方向(方向 direction;行 row;列 column) flex-direction:column;

<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,initial-scale=1">
    <title>flex 弹性布局</title>
    <meta name="Keywords" content="关键字">
    <meta name="description" content="简介">
    <!-- 弹性布局 display:flex;
        居中等分 justify-content:center;
        布局方向(方向 direction;行 row;列 column) flex-direction:column;
     -->
    <style>
        .box {
            /*弹性布局 flex*/
            display: flex;
            /*居中等分*/
            /*justify-content: center;*/
            /*justify-content: space-around;*/
        }

        .box span {
            flex: 1;
            height: 100px;
            /*background-color: aqua;*/
            margin: 5px;
            /*width: 300px;*/
        }

        .ad span {
            margin: 2px;
            width: 300px;
            /*height: 150px;*/
            flex: 1;
        }

        .ad {
            height: 500px;
            /*弹性布局*/
            display: flex;
            /*布局方向(方向 direction) flex-direction:column;行(row) 列(column)*/
            flex-direction: column;
        }
    </style>
</head>
<body>
<div class="box">
    <span style="background-color: green">s1</span>
    <span style="background-color: pink">s2</span>
    <span style="flex:3;background-color: #10f574">s3</span>
    <span style="background-color: deepskyblue">s4</span>
</div>
<div class="ad">
    <span style="background-color: forestgreen"></span>
    <span style="background-color: palevioletred"></span>
    <span style="background-color: blueviolet"></span>
</div>
</body>
</html>