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实现两列布局有多种方法,这里我会介绍几种常见的技术,包括浮动、Flexbox和Grid布局。
浮动是一种早期的布局方式,虽然现在不推荐,但仍然有必要了解。
- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <title>Two Column Layout using Float</title>
- <style>
- .container {
- width: 100%;
- }
- .left-column {
- float: left;
- width: 50%;
- background-color: lightblue;
- height: 300px; /* for demonstration */
- }
- .right-column {
- float: left;
- width: 50%;
- background-color: lightgreen;
- height: 300px; /* for demonstration */
- }
- .clearfix::after {
- content: "";
- clear: both;
- display: table;
- }
- </style>
- </head>
- <body>
- <div class="container clearfix">
- <div class="left-column">Left Column</div>
- <div class="right-column">Right Column</div>
- </div>
- </body>
- </html>
-

关键点:
float: left;
用于将列浮动到左侧。.clearfix::after
伪元素用于清除浮动,防止父容器高度塌陷。Flexbox是一个强大而现代的布局方式,非常适合实现响应式布局。
- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <title>Two Column Layout using Flexbox</title>
- <style>
- .container {
- display: flex;
- }
- .left-column {
- flex: 1;
- background-color: lightblue;
- height: 300px; /* for demonstration */
- }
- .right-column {
- flex: 1;
- background-color: lightgreen;
- height: 300px; /* for demonstration */
- }
- </style>
- </head>
- <body>
- <div class="container">
- <div class="left-column">Left Column</div>
- <div class="right-column">Right Column</div>
- </div>
- </body>
- </html>
-

关键点:
display: flex;
用于将父容器设为Flex容器。flex: 1;
确保两列等宽。Grid布局是CSS中最强大的布局系统之一,尤其适合复杂的网格布局。
- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <title>Two Column Layout using Grid</title>
- <style>
- .container {
- display: grid;
- grid-template-columns: 1fr 1fr;
- }
- .left-column {
- background-color: lightblue;
- height: 300px; /* for demonstration */
- }
- .right-column {
- background-color: lightgreen;
- height: 300px; /* for demonstration */
- }
- </style>
- </head>
- <body>
- <div class="container">
- <div class="left-column">Left Column</div>
- <div class="right-column">Right Column</div>
- </div>
- </body>
- </html>
-

关键点:
display: grid;
用于将父容器设为Grid容器。grid-template-columns: 1fr 1fr;
用于定义两个等宽的列。无论使用哪种布局方式,都要考虑响应式设计,以确保布局在各种设备上都能良好展示。
例如,使用Flexbox实现响应式设计:
- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <title>Responsive Two Column Layout</title>
- <style>
- .container {
- display: flex;
- flex-wrap: wrap;
- }
- .left-column, .right-column {
- flex: 1 1 50%;
- background-color: lightblue;
- height: 300px; /* for demonstration */
- box-sizing: border-box;
- }
- .right-column {
- background-color: lightgreen;
- }
- @media (max-width: 768px) {
- .left-column, .right-column {
- flex: 1 1 100%;
- }
- }
- </style>
- </head>
- <body>
- <div class="container">
- <div class="left-column">Left Column</div>
- <div class="right-column">Right Column</div>
- </div>
- </body>
- </html>
-

关键点:
flex-wrap: wrap;
确保列在小屏幕上换行。align-items
属性或Grid的align-content
属性实现。gap
属性或Grid的grid-gap
属性。1. 只能想到vuetify中的网格布局,如果需要居左居右还不知如何处理。
2.通过给两列都设置float:left属性和宽度就可以实现两列布局,还要设置伪元素清除浮动;通过给容器设置flex布局,然后每一列设置flex:1,就可以实现两列等宽;通过给容器设置display: grid和grid-template-columns: 1fr 1fr,
就可以实现等宽两列布局,这种是只在容器设置即可。
3. /
4. 多总结即可,容易忘。
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