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>
