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目录
[1]float [2]inline-block [3]table[4]absolute[5]flex[6]总结
前面的话
全屏布局在实际工作中是很常用的,比如管理系统、监控平台等。本文将介绍关于全屏布局的5种思路
思路一: float
【1】float + calc
通过calc()函数计算出.middle元素的高度,并设置子元素高度为100%
<style> body,p{margin: 0;} body,html,.parent{height: 100%;} .middle{ overflow: hidden; height: calc(100% - 100px); } .left{ float: left; width: 100px; margin-right: 20px; height: 100%; } .right{ overflow: auto; height: 100%; } .right-in{ height: 1000px; } .top,.bottom{height:50px;} </style>
<div class="parent" id="parent" style="background-color: lightgrey;"> <div class="top" style="background-color: lightblue;"> <p>top</p> </div> <div class="middle" style="background-color: pink;"> <div class="left" style="background-color: orange;"> <p>left</p> </div> <div class="right" style="background-color: lightsalmon;"> <div class="right-in"> <p>right</p> </div> </div> </div> <div class="bottom" style="background-color: lightgreen;"> <p>bottom</p> </div> </div>
【2】float + absolute + (fix)
通过增加结构来提高兼容性,.middle元素设置100%的高度,.top和.bottom设置absolute覆盖在.middle上
<style> body,p{margin: 0;} body,html,.parent{height: 100%;} .top,.bottom{ position: absolute; height:50px; left: 0; right: 0; } .top{top: 0;} .bottom{bottom: 0;} .middleWrap{ height: 100%; overflow: hidden; } .middle{ overflow: hidden; height: 100%; margin: 50px 0; } .left{ float: left; width: 100px; margin-right: 20px; height: 100%; } .right{ overflow: auto; height: 100%; } .right-in{ height: 1000px; } </style>
<div class="parent" id="parent" style="background-color: lightgrey;"> <div class="top" style="background-color: lightblue;"> <p>top</p> </div> <div class="middleWrap"> <div class="middle" style="background-color: pink;"> <div class="left" style="background-color: orange;"> <p>left</p> </div> <div class="right" style="background-color: lightsalmon;"> <div class="right-in"> <p>right</p> </div> </div> </div> </div> <div class="bottom" style="background-color: lightgreen;"> <p>bottom</p> </div> </div>
思路二: inline-block
【1】inline-block + calc
<style> body,p{margin: 0;} body,html,.parent{height: 100%;} .middle{ height: calc(100% - 100px); font-size: 0; } .left,.right{ display: inline-block; vertical-align: top; font-size: 16px; } .left{ width: 100px; margin-right: 20px; height: 100%; } .right{ width: calc(100% - 120px); height: 100%; overflow: auto; } .right-in{ height: 1000px; } .top,.bottom{height: 50px;} </style>
<div class="parent" id="parent" style="background-color: lightgrey;"> <div class="top" style="background-color: lightblue;"> <p>top</p> </div> <div class="middle" style="background-color: pink;"> <div class="left" style="background-color: orange;"> <p>left</p> </div> <div class="right" style="background-color: lightsalmon;"> <div class="right-in"> <p>right</p> </div> </div> </div> <div class="bottom" style="background-color: lightgreen;"> <p>bottom</p> </div> </div>
【2】inline-block + absolute + (fix)
<style> body,p{margin: 0;} body,html,.parent{height: 100%;} .top,.bottom{ position: absolute; left: 0; right: 0; height: 50px; } .top{top: 0;} .bottom{bottom: 0;} .middleWrap{ height: 100%; font-size: 0; overflow: hidden; } .middle{ position: relative; height: 100%; margin: 50px 0; overflow: hidden; } .left,.rightWrap{ display: inline-block; vertical-align: top; font-size: 16px; } .left{ position: absolute; width: 100px; margin-right: 20px; height: 100%; } .rightWrap{ width: 100%; height: 100%; } .right{ height: 100%; margin-left: 120px; overflow: auto; } .right-in{ height: 1000px; } </style>
<div class="parent" id="parent" style="background-color: lightgrey;"> <div class="top" style="background-color: lightblue;"> <p>top</p> </div> <div class="middleWrap"> <div class="middle" style="background-color: pink;"> <div class="left" style="background-color: orange;"> <p>left</p> </div> <div class="rightWrap"> <div class="right" style="background-color: lightsalmon;"> <div class="right-in"> <p>right</p> </div> </div> </div> </div> </div> <div class="bottom" style="background-color: lightgreen;"> <p>bottom</p> </div> </div>
思路三: table
水平方向子元素的间距可以用border实现。所有浏览器都不支持给table-cell元素设置overflow属性。firefox和IE11浏览器不支持给table-cell元素的设置100%高度的子元素设置overflow属性
<style> body,p{margin: 0;} body,html,.parent{height: 100%;} .top,.bottom{ position: absolute; width: 100%; height: 50px; } .bottom{bottom: 0;} .middleWrap{ height: 100%; overflow: hidden; } .middle{ width: 100%; height: 100%; display: table; margin: 50px 0; table-layout: fixed; } .left{ display: table-cell; width: 120px; border-right: 20px solid lightgray; } .rightWrap{ display: table-cell; height: 100%; } .right{ height: 100%; overflow: auto; } .right-in{ height: 1000px; } </style>
<div class="parent" id="parent" style="background-color: lightgrey;"> <div class="top" style="background-color: lightblue;"> <p>top</p> </div> <div class="middleWrap"> <div class="middle" style="background-color: pink;"> <div class="left" style="background-color: orange;"> <p>left</p> </div> <div class="rightWrap"> <div class="right" style="background-color: lightsalmon;"> <div class="right-in"> <p>right</p> </div> </div> </div> </div> </div> <div class="bottom" style="background-color: lightgreen;"> <p>bottom</p> </div> </div>
思路四: absolute
<style> body,p{margin: 0;} body,html,.parent{height: 100%;} .top,.middle,.bottom{ position: absolute; left: 0; right: 0; } .top{ top: 0; height: 50px; } .bottom{ bottom: 0; height: 50px; } .middle{ top: 50px; bottom: 50px; } .left,.right{ position: absolute; top: 0; bottom: 0; } .left{ width:100px; } .right{ left: 120px; right: 0; overflow: auto; } .right-in{ height: 1000px; } </style>
<div class="parent" id="parent" style="background-color: lightgrey;"> <div class="top" style="background-color: lightblue;"> <p>top</p> </div> <div class="middle" style="background-color: pink;"> <div class="left" style="background-color: orange;"> <p>left</p> </div> <div class="right" style="background-color: lightsalmon;"> <div class="right-in"> <p>right</p> </div> </div> </div> <div class="bottom" style="background-color: lightgreen;"> <p>bottom</p> </div> </div>
思路五: flex
flex常用于小范围的布局,使用全屏布局时会因为性能问题,出现卡顿现象。如果要使用全屏自适应布局,则只有flex才能达到效果
<style> body,p{margin: 0;} body,html,.parent{height: 100%;} .parent{ display: flex; flex-direction: column; } .top,.bottom{ height: 50px; } .middle{ display: flex; flex: 1; } .left{ width: 100px; margin-right: 20px; } .right{ flex: 1; overflow: auto; } .right-in{ height: 1000px; } </style>
<div class="parent" id="parent" style="background-color: lightgrey;"> <div class="top" style="background-color: lightblue;"> <p>top</p> </div> <div class="middle" style="background-color: pink;"> <div class="left" style="background-color: orange;"> <p>left</p> </div> <div class="right" style="background-color: lightsalmon;"> <div class="right-in"> <p>right</p> </div> </div> </div> <div class="bottom" style="background-color: lightgreen;"> <p>bottom</p> </div> </div>
总结
全屏布局实际上就是两列或三列自适应布局的扩展形式。由于实现的是全屏效果,高度实际上是固定的,所以思路并没有等高布局局限。水平方向元素之间的间距根据实际情况使用margin、padding、border都可以实现
时间: 2024-10-08 08:31:58