一、布局方式
1、内容与tab分离
<div class="container"> <div class="tab-content"> <div id="item1" class="item">内容1</div> <div id="item2" class="item">内容2</div> <div id="item3" class="item">内容3</div> <div id="item4" class="item">内容4</div> </div> <div class="tab-control"> <ul> <li><a href="#item1">内容1</a></li> <li><a href="#item2">内容2</a></li> <li><a href="#item3">内容3</a></li> <li><a href="#item4">内容4</a></li> </ul> </div></div>
ul,li{ margin:0; padding:0; list-style:none;}.container{ width:400px; height:300px; background-color:silver;}.tab-content{ width:100%; height:80%; overflow:hidden;}.tab-content .item{ width:100%; height:100%;}.tab-control{ width:100%; height:20%;}.tab-control ul{ height:100%;}.tab-control li{ width:25%; height:100%; float:left; border:1px solid silver; box-sizing:border-box; background-color:white; cursor: pointer;}.tab-control li:hover{ background-color:#7b7474}.tab-control a{ display:inline-block; width:100%; height:100%; line-height:100%; text-align:center; text-decoration: none;}.tab-control a::after{ content:""; display:inline-block; height:100%; vertical-align:middle;}.tab-content .item:target{ background:yellow;}2、内容与tab一体
<div class="container"> <ul> <li class="item active"> <p class="title">1</p> <p class="content">1</p> </li> <li class="item"> <p class="title">2</p> <p class="content ml1">2</p> </li> <li class="item"> <p class="title">3</p> <p class="content ml2">3</p> </li> <li class="item"> <p class="title">4</p> <p class="content ml3">4</p> </li> </ul></div>
ul,li,p{ margin:0; padding:0; list-style:none;}.container{ width:400px; height:300px; background-color:silver; border:1px solid silver;}.container ul{ width:100%; height:100%; overflow:hidden;}.container .item{ float:left; width:25%; height:100%; background-color:white;}.container .item .title{ line-height:40px; border:1px solid silver; box-sizing:border-box; text-align:center; cursor:pointer;}.container .item .content{ width:400%; height:100%; background-color:yellow;}.ml1{ margin-left:-100%;}.ml2{ margin-left:-200%;}.ml3{ margin-left:-300%;}.active{ position:relative; z-index:1}.container .item:hover{ position:relative; z-index:1}.container .item:hover .title{ border-bottom:none; background-color:yellow;}利用负margin，将内容区对齐，然后内容去添加背景色，避免不同tab对应的区域透视重叠。
二、CSS实现交互
1、锚点实现（target）
(1)针对布局一：
item从上往下排列，父元素tab-content加上overflow:hidden。利用锚点，点击不同a标签的时候，具有对应ID的item会切换到tab-content的视图中，然后利用hover给tab按钮加上切换样式。
<div class="container"> <div class="tab-content"> <div id="item1" class="item">内容1</div> <div id="item2" class="item">内容2</div> <div id="item3" class="item">内容3</div> <div id="item4" class="item">内容4</div> </div> <div class="tab-control"> <ul> <li><a href="#item1">内容1</a></li> <li><a href="#item2">内容2</a></li> <li><a href="#item3">内容3</a></li> <li><a href="#item4">内容4</a></li> </ul> </div></div>
ul,li{ margin:0; padding:0; list-style:none;}.container{ width:400px; height:300px; background-color:silver;}.tab-content{ width:100%; height:80%; overflow:hidden;}.tab-content .item{ width:100%; height:100%;}.tab-control{ width:100%; height:20%;}.tab-control ul{ height:100%;}.tab-control li{ width:25%; height:100%; float:left; border:1px solid silver; box-sizing:border-box; background-color:white; cursor: pointer;}.tab-control li:hover{ background-color:#7b7474}.tab-control a{ display:inline-block; width:100%; height:100%; line-height:100%; text-align:center; text-decoration: none;}.tab-control a::after{ content:""; display:inline-block; height:100%; vertical-align:middle;}上述方法只是利用了锚点切换，没有使用：target。修改CSS
ul,li{ margin:0; padding:0; list-style:none;}.container{ width:400px; height:300px; background-color:silver;}.tab-content{ position:relative; width:100%; height:80%; overflow:hidden;}.tab-content .item{ position:absolute; left:0; top:0; width:100%; height:100%;}.tab-control{ width:100%; height:20%;}.tab-control ul{ height:100%;}.tab-control li{ width:25%; height:100%; float:left; border:1px solid silver; box-sizing:border-box; background-color:white; cursor: pointer;}.tab-control li:hover{ background-color:#7b7474}.tab-control a{ display:inline-block; width:100%; height:100%; line-height:100%; text-align:center; text-decoration: none;}.tab-control a::after{ content:""; display:inline-block; height:100%; vertical-align:middle;}.tab-content .item:target{ z-index:1; background-color:yellow;}item使用绝对定位，然后使用:target修改元素z-index达到切换效果（其实也可以通过控制元素的display来达到切换效果）
（2）针对布局二：
<div class="container"> <ul> <li class="item active" id="item1"> <p class="title"><a href="#item1">1</a></p> <p class="content">1</p> </li> <li class="item" id="item2"> <p class="title"><a href="#item2">2</a></p> <p class="content ml1">2</p> </li> <li class="item" id="item3"> <p class="title"><a href="#item3">3</a></p> <p class="content ml2">3</p> </li> <li class="item" id="item4"> <p class="title"><a href="#item4">4</a></p> <p class="content ml3">4</p> </li> </ul></div>
ul,li,p { margin: 0; padding: 0; list-style: none;}.container { width: 400px; height: 300px; background-color: silver; border: 1px solid silver;}.container ul { width: 100%; height: 100%; overflow: hidden;}.container .item { float: left; width: 25%; height: 100%; background-color: white;}.container .item .title { line-height: 40px; border: 1px solid silver; box-sizing: border-box; text-align: center; cursor: pointer;}.container .item a { display:inline-block; width:100%; height:100%; text-decoration: none;}.container .item .content { width: 400%; height: 100%; background-color: yellow;}.ml1 { margin-left: -100%;}.ml2 { margin-left: -200%;}.ml3 { margin-left: -300%;}.active { position: relative; z-index: 1}.container .item:target { position: relative; z-index: 1}.container .item:target .title { border-bottom: none; background-color: yellow;}
2、hover实现
（1）针对布局一：
无法简单的通过CSS实现
（2）针对布局二：
<div class="container"> <ul> <li class="item active"> <p class="title">1</p> <p class="content">1</p> </li> <li class="item"> <p class="title">2</p> <p class="content ml1">2</p> </li> <li class="item"> <p class="title">3</p> <p class="content ml2">3</p> </li> <li class="item"> <p class="title">4</p> <p class="content ml3">4</p> </li> </ul></div>
ul,li,p{ margin:0; padding:0; list-style:none;}.container{ width:400px; height:300px; background-color:silver; border:1px solid silver;}.container ul{ width:100%; height:100%; overflow:hidden;}.container .item{ float:left; width:25%; height:100%; background-color:white;}.container .item .title{ line-height:40px; border:1px solid silver; box-sizing:border-box; text-align:center; cursor:pointer;}.container .item .content{ width:400%; height:100%; background-color:yellow;}.ml1{ margin-left:-100%;}.ml2{ margin-left:-200%;}.ml3{ margin-left:-300%;}.active{ position:relative; z-index:1}.container .item:hover{ position:relative; z-index:1}.container .item:hover .title{ border-bottom:none; background-color:yellow;}3、label与:checked实现
（1）针对布局一：
<div class="container"> <div class="tab-content"> <input type="radio" name="item" class="radio-item" id="item1" checked/> <div class="item">内容1</div> <input type="radio" name="item" class="radio-item" id="item2" /> <div class="item">内容2</div> <input type="radio" name="item" class="radio-item" id="item3" /> <div class="item">内容3</div> <input type="radio" name="item" class="radio-item" id="item4" /> <div class="item">内容4</div> </div> <div class="tab-control"> <ul> <li><label for="item1">内容1</label></li> <li><label for="item2">内容2</label></li> <li><label for="item3">内容3</label></li> <li><label for="item4">内容4</label></li> </ul> </div></div>
ul,li { margin: 0; padding: 0; list-style: none;}.container { width: 400px; height: 300px; background-color: silver;}.tab-content { position: relative; width: 100%; height: 80%; overflow: hidden;}input { margin: 0; width: 0;}.tab-content .item { position: absolute; left: 0; top: 0; width: 100%; height: 100%;}.tab-control { width: 100%; height: 20%;}.tab-control ul { height: 100%;}.tab-control li { width: 25%; height: 100%; float: left; border: 1px solid silver; box-sizing: border-box; background-color: white;}.tab-control li:hover { background-color: #7b7474}.tab-control label { display: inline-block; width: 100%; height: 100%; line-height: 100%; text-align: center; text-decoration: none; cursor: pointer;}.tab-control label::after { content: ""; display: inline-block; height: 100%; vertical-align: middle;}.tab-content .radio-item{ display:none;}.tab-content .radio-item:checked+.item { z-index: 1; background-color: yellow;}利用css :checked与+（选择紧接在另一个元素后的元素，而且二者有相同的父元素）选择符。
（2）针对布局二：
<div class="container"> <ul> <li class="item active"> <input type="radio" name="item" class="radio-item" id="item1" checked/> <label class="title" for="item1">1</label> <p class="content">1</p> </li> <li class="item"> <input type="radio" name="item" class="radio-item" id="item2" /> <label class="title" for="item2">2</label> <p class="content ml1">2</p> </li> <li class="item"> <input type="radio" name="item" class="radio-item" id="item3" /> <label class="title" for="item3">3</label> <p class="content ml2">3</p> </li> <li class="item"> <input type="radio" name="item" class="radio-item" id="item4" /> <label class="title" for="item4">4</label> <p class="content ml3">4</p> </li> </ul></div>
ul,li,p{ margin:0; padding:0; list-style:none;}.container{ width:400px; height:300px; background-color:silver; border:1px solid silver;}.container ul{ width:100%; height:100%; overflow:hidden;}.container .item{ float:left; width:25%; height:100%; background-color:white;}.container .item .title{ display:inline-block; width:100%; line-height:40px; border:1px solid silver; box-sizing:border-box; text-align:center; cursor:pointer;}.container .item .content{ position:relative; width:400%; height:100%; background-color:yellow;}.ml1{ margin-left:-100%;}.ml2{ margin-left:-200%;}.ml3{ margin-left:-300%;}.radio-item{ display:none;}.radio-item:checked~.title{ background-color:yellow; border-bottom:none;}.radio-item:checked~.content{ background-color:yellow; z-index:1;}以上这篇CSS实现Tab布局的简单实例(必看)就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持脚本之家。
