多列布局文件

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        /* 多列布局 */
        .box {
            /* 写法： */
            /* 分成4列 */
            column-count: 4;
            /* 每一列之间的间距 */
            column-gap: 20px;
            /* 在列中加一条线 */
            column-rule: 1px solid #000;

            max-width: 1200px;
            margin: 30px auto;
            border: 1px solid #000;
        }

        .box .item {
            /* 强制不切割换行 */
            break-inside: avoid-column;

            background-color: pink;
            height: 160px;
            width: 160px;
            margin-bottom: 20px;
        }

        .box .item:nth-child(2n+3) {
            height: 200px;
        }
    </style>
</head>

<body>
    <div class="box">
        <div class="item">1</div>
        <div class="item">2</div>
        <div class="item">3</div>
        <div class="item">4</div>
        <div class="item">5</div>
        <div class="item">6</div>
        <div class="item">7</div>
        <div class="item">8</div>
        <div class="item">9</div>
        <div class="item">10</div>
        <div class="item">11</div>
        <div class="item">12</div>
        <div class="item">13</div>
    </div>
</body>

</html>
下载链接：
多列布局.html