grid-layout实验

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
<style>
    * {margin: 0;padding: 0;}
    html,body {width: 100%;height: 100%;}
    .container {
        display: grid;
        grid-template-columns: 33.333333% 33.333333% 33.333333%;
          grid-template-rows: auto;
    }
    .item {
        background-color: #444;
        color: #fff;
        font-size: 150%;
        padding: 20px;
        margin: 3.333333%;
    }
    .item-5 {
        grid-column-start: 2;
        grid-column-end: 4;
        grid-row-start: 2;
        grid-row-end: 4;
    }
    .item-7 {
        grid-column-start: 1;
        grid-column-end: 3;
        grid-row-start: 4;
        grid-row-end: 4;
    }
    .item-12 {
        grid-column-start: 1;
        grid-column-end: 4;
        grid-row-start: 6;
        grid-row-end: 6;
    }
</style>
</head>
<body>

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

</body> 
</html>

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原文地址：https://www.cnblogs.com/lldy/p/9710647.html