【学习css3】使用flex和grid实现等高元素布局

过往的实现方法是使用浮动加计算布局来实现，当flex和grid问世时，这一切将变得简单起来

一、简单的两列实现

1、先看页面效果

2、css代码

    .container {padding: 10px;width: 100ch;margin: 0 auto;box-shadow: inset 0 0 0 2px #ccc;}.column {margin: 20px;background-color: #ccc;padding: 10px;}.flexbox {display: flex;}.grid {display: grid;grid-auto-flow: column;}

3、html代码

    <div class="container">flex布局</div><div class="container flexbox"><div class="column"><div class="element"><p> 松饼冰淇淋小熊软糖。甜苹果派，蛋糕，糖果，胡萝卜蛋糕。糖蛋奶酥，柠檬糖软糖。</p></div></div><div class="column"><div class="element"><p>提拉米苏粉布丁。蛋糕芝士蛋糕糕点焦糖提拉米苏。</p></div></div></div><div class="container">grid布局</div><div class="container grid"><div class="column"><div class="element"><p>松饼冰淇淋小熊软糖。甜苹果派，蛋糕，糖果，胡萝卜蛋糕。糖蛋奶酥，柠檬糖软糖。</p></div></div><div class="column"><div class="element"><p>提拉米苏粉布丁。蛋糕芝士蛋糕糕点焦糖提拉米苏。</p></div></div></div>

二、每行放置3列，多出来的自动到下一行

1、还是先看页面效果

2、css代码

    .container {padding: 10px;width: 100ch;margin: 0 auto;box-shadow: inset 0 0 0 2px #ccc;}.column {margin: 20px;background-color: #ccc;padding: 10px;}.flexbox {display: flex;}.flexbox.col-3 {flex-wrap: wrap;}.flexbox.col-3 .column {margin: 0.5rem;width: calc((100% / 3) - 1rem);}.grid {display: grid;grid-auto-flow: column;}.grid.col-3 {grid-gap: 1rem;grid-template-columns: repeat(3, 1fr);grid-auto-flow: unset;}.grid.col-3 .column {margin: 0;}

3、html代码

<div class="container">flex布局</div><div class="container flexbox col-3"><div class="column"><div class="element"><p>flexbox col-3: 甜苹果派，蛋糕，糖果，胡萝卜蛋糕。糖蛋奶酥，柠檬糖软糖。</p></div></div><div class="column"><div class="element"><p>提拉米苏粉布丁。蛋糕芝士蛋糕糕点焦糖提拉米苏。</p></div></div><div class="column"><div class="element"><p>松饼冰淇淋小熊软糖。甜苹果派，蛋糕，糖果，胡萝卜蛋糕。糖蛋奶酥，柠檬糖软糖。</p></div></div><div class="column"><div class="element"><p>蛋奶酥馅饼，柠檬糖，小熊软糖，棒棒糖，甜点，芝麻饼干。提拉米苏粉布丁。蛋糕芝士蛋糕糕点焦糖提拉米苏。</p></div></div></div><div class="container">grid布局</div><div class="container grid col-3"><div class="column"><div class="element"><p>grid col-3:甜苹果派，蛋糕，糖果，胡萝卜蛋糕。糖蛋奶酥，柠檬糖软糖。</p></div></div><div class="column"><div class="element"><p>提拉米苏粉布丁。蛋糕芝士蛋糕糕点焦糖提拉米苏。</p></div></div><div class="column"><div class="element"><p>松饼冰淇淋小熊软糖。甜苹果派，蛋糕，糖果，胡萝卜蛋糕。糖蛋奶酥，柠檬糖软糖。</p></div></div><div class="column"><div class="element"><p>蛋奶酥馅饼，柠檬糖，小熊软糖，棒棒糖，甜点，芝麻饼干。提拉米苏粉布丁。蛋糕芝士蛋糕糕点焦糖提拉米苏。</p></div></div></div>

三、全部代码

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>使用flex和grid实现等高元素布局</title><style>* {margin: 0;padding: 0;box-sizing: border-box;}.container {padding: 10px;width: 100ch;margin: 0 auto;box-shadow: inset 0 0 0 2px #ccc;}.column {margin: 20px;background-color: #ccc;padding: 10px;}.flexbox {display: flex;}.flexbox.col-3 {flex-wrap: wrap;}.flexbox.col-3 .column {margin: 0.5rem;width: calc((100% / 3) - 1rem);}.grid {display: grid;grid-auto-flow: column;}.grid.col-3 {grid-gap: 1rem;grid-template-columns: repeat(3, 1fr);grid-auto-flow: unset;}.grid.col-3 .column {margin: 0;}</style>
</head>
<body><div class="container">flex布局</div><div class="container flexbox"><div class="column"><div class="element"><p> 松饼冰淇淋小熊软糖。甜苹果派，蛋糕，糖果，胡萝卜蛋糕。糖蛋奶酥，柠檬糖软糖。</p></div></div><div class="column"><div class="element"><p>提拉米苏粉布丁。蛋糕芝士蛋糕糕点焦糖提拉米苏。</p></div></div></div><div class="container">grid布局</div><div class="container grid"><div class="column"><div class="element"><p>松饼冰淇淋小熊软糖。甜苹果派，蛋糕，糖果，胡萝卜蛋糕。糖蛋奶酥，柠檬糖软糖。</p></div></div><div class="column"><div class="element"><p>提拉米苏粉布丁。蛋糕芝士蛋糕糕点焦糖提拉米苏。</p></div></div></div><div class="container">flex布局</div><div class="container flexbox col-3"><div class="column"><div class="element"><p>flexbox col-3: 甜苹果派，蛋糕，糖果，胡萝卜蛋糕。糖蛋奶酥，柠檬糖软糖。</p></div></div><div class="column"><div class="element"><p>提拉米苏粉布丁。蛋糕芝士蛋糕糕点焦糖提拉米苏。</p></div></div><div class="column"><div class="element"><p>松饼冰淇淋小熊软糖。甜苹果派，蛋糕，糖果，胡萝卜蛋糕。糖蛋奶酥，柠檬糖软糖。</p></div></div><div class="column"><div class="element"><p>蛋奶酥馅饼，柠檬糖，小熊软糖，棒棒糖，甜点，芝麻饼干。提拉米苏粉布丁。蛋糕芝士蛋糕糕点焦糖提拉米苏。</p></div></div></div><div class="container">grid布局</div><div class="container grid col-3"><div class="column"><div class="element"><p>grid col-3:甜苹果派，蛋糕，糖果，胡萝卜蛋糕。糖蛋奶酥，柠檬糖软糖。</p></div></div><div class="column"><div class="element"><p>提拉米苏粉布丁。蛋糕芝士蛋糕糕点焦糖提拉米苏。</p></div></div><div class="column"><div class="element"><p>松饼冰淇淋小熊软糖。甜苹果派，蛋糕，糖果，胡萝卜蛋糕。糖蛋奶酥，柠檬糖软糖。</p></div></div><div class="column"><div class="element"><p>蛋奶酥馅饼，柠檬糖，小熊软糖，棒棒糖，甜点，芝麻饼干。提拉米苏粉布丁。蛋糕芝士蛋糕糕点焦糖提拉米苏。</p></div></div></div>
</body>
</html>