素胚勾勒不出你
1、浮动布局:12345678910<style>html,body{margin:0; padding:0}.div1 {float:left; width:80%; height:600px; background-color:red}.div2 {float:left; width:80%; background-color:green}.div3 {float:right; width:20%; background-color:blue}</style><div class="div1">宽80%,高600px</div><div class="div3">宽20%,高随内容</div><div class="div2">宽80%,高随内容</div><br style="clear:both"/>2、绝对定位:123456789<style>html,body{margin:0; padding:0}.div1 {position:absolute; left:0; top:0; width:80%; height:600px; background-color:red}.div2 {position:absolute; left:0; top:600px; width:80%; background-color:green}.div3 {position:absolute; right:0; top:0; width:20%; background-color:blue}</style><div class="div1">宽80%,高600px</div><div class="div2">宽80%,高随内容</div><div class="div3">宽20%,高随内容</div>3、flex布局:123456789101112131415<style>html,body{margin:0; padding:0}.box {display:flex; align-items:flex-start}.left {display:flex; flex-direction:column; flex:0 1 80%}.div1 {flex:0 1 600px; background-color:red}.div2 {flex:auto; background-color:green}.right {flex:auto; background-color:blue}</style><div class="box"> <div class="left"> <div class="div1">宽80%,高600px</div> <div class="div2">宽80%,高随内容</div> </div> <div class="right">宽20%,高随内容</div></div>