Trois méthodes d'implémentation de la disposition CSS à trois colonnes (disposition du Saint Graal, disposition à double aile volante, disposition Flex)

nbsp;html>


<title>圣杯</title>
<style>
.container{
    padding:0 200px 0 180px;
    height:100px;
}
.left{
    float:left;
    width:180px;
    height:100px;
    margin-left:-100%;
    background:red;
    position:relative;
    left:-180px;
}
.main{
    float:left;
    width:100%;
    height:100px;
    background:blue;
}

.right{
    float:left;
    width:200px;
    height:100px;
    margin-left:-200px;
    background:green;
    position:relative;
    right:-200px;
}

</style>


<div>
  <div>middle</div>
  <div>left</div>
  <div>right</div>
<h3>Mise en page à double aile volante</h3>
<pre class="brush:php;toolbar:false">nbsp;html>


    <meta>
    <title>双飞翼</title>
    <style>
.main{
    float:left;
    width:100%;/*左栏上去到第一行*/     
    height:100px;
    background:blue;
}
.left{
    float:left;
    width:180px;
    height:100px;
    margin-left:-100%;
    background:red;
}
.right{
    float:left;
    width:200px;
    height:100px;
    margin-left:-200px;
    background:green;
}
</style>


  <div></div>
  <div>left</div>
  <div>right</div>

nbsp;html>


    <meta>
    <title>Flex</title>
    <style>
.flex {
    display: flex;
    flex-flow: row;
}
.left{
    width: 180px;
    height: 100px;    
    background-color: red;
}
.main{
    flex: 1; 
    height: 100px;
    background-color: blue;
}
.right {
    width: 200px;
    height: 100px;
    background-color: green;
}
    </style>


<div>
    <div>left</div>
    <div>middle</div>
    <div>right</div>
</div>