float浮动
<section class="layout float">
<style media="screen">
.layout.float .left{
float: left;
width: 300px;
background: pink;
}
.layout.float .right{
float: right;
width: 300px;
background: lightblue;
}
.layout.float .center {
background: lightyellow;
}
</style>
<article class="left-right-center">
<div class="left"></div>
<div class="right"></div>
<div class="center">
<h1>浮动解决方案</h1>
1.这是三栏布局中的中间部分
2.这是三栏布局中的中间部分
</div>
</article>
</section>
absolute绝对定位
<section class="layout absolute">
<style media="screen">
.layout.absolute .left-right-center>div {
position: absolute;
}
.layout.absolute .left {
width: 300px;
left: 0;
background: lightblue;
}
.layout.absolute .right {
width: 300px;
right: 0;
background: lightgreen;
}
.layout.absolute .center {
left: 300px;
right: 300px;
background: pink;
}
</style>
<article class="left-right-center">
<div class="left"></div>
<div class="right"></div>
<div class="center">
<h1>绝对定位解决方案</h1>
2.这是三栏布局的中间部分
</div>
</article>
</section>
flex布局
<section class="layout flexbox">
<style media="screen">
.layout.flexbox .left-center-right {
margin-top: 140px;
display: flex;
}
.layout.flexbox .left {
width: 300px;
background: lightcoral;
}
.layout.flexbox .center {
flex:1;
background: lightgray;
}
.layout.flexbox .center2 {
flex:1; /*按照数字的比例自动分配剩余空间*/
background: lightgreen;
}
.layout.flexbox .right {
width: 300px;
background: lightblue;
}
</style>
<article class="left-center-right">
<div class="left"></div>
<div class="center">
<h1>flex布局解决方案</h1>
3.这是三栏布局的中间部分
</div>
<div class="center2">
<h1>flex布局解决方案</h1>
3.这是三栏布局的中间部分
</div>
<div class="right"></div>
</article>
</section>
table布局
<section class="layout table">
<style>
.layout.table .left-center-right {
width: 100%;
height: 100px;
display: table;
}
.layout.table .left-center-right>div {
display: table-cell;
}
.layout.table .left {
width: 300px;
background: lightgreen;
}
.layout.table .center {
background: pink;
}
.layout.table .right {
width: 300px;
background: lightblue;
}
</style>
<article class="left-center-right">
<div class="left"></div>
<div class="center">
<h1>table解决方案</h1>
4.这是三栏布局的中间部分
</div>
<div class="right"></div>
</article>
</section>
grid网格布局
<section class="layout grid">
<style>
.layout.grid .left-center-right {
display: grid;
width: 100%;
grid-template-rows:100px;
grid-template-columns:300px auto 300px;
}
.left {
background: lightgreen;
}
.center {
background: pink;
}
.right {
background: lightblue;
}
</style>
<article class="left-center-right">
<div class="left"></div>
<div class="center">
<h1>网格布局解决方案</h1>
5.这是三栏布局的中间部分
</div>
<div class="right"></div>
</article>
</section>