双飞翼
实现优先加载main,左右固定,中间自适应
container(包含main),left,right 都浮动float:left container设置100%宽度main设置 左 右 margin,给 left , main 让位置left 设置 margin-left:-100%(父元素width的100%)right设置margin-left:自身宽度的负值
<
div id=
"container1">
<
div id=
"main1">main</
div>
</
div>
<
div id=
"left1">left</
div>
<
div id=
"right1">right</
div>
#container1{
float: left;
width: 100%;
}
#main1{
margin-left: 100px;
margin-right: 200px;
}
#left1{
float: left;
width: 100px;
margin-left: -100%;
}
#right1{
float: left;
width: 200px;
margin-left: -200px;
}
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