使用css3实现响应式布局-优快云博客

本文介绍了一个使用HTML和CSS实现的响应式网页布局案例。该布局包括顶部、主体和底部三个部分，在不同屏幕尺寸下自动调整布局。主体部分进一步划分为左、中、右三栏，其中右侧栏在较小屏幕尺寸下隐藏。

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<!DOCTYPE html>
<html>
    
<head lang="en">
    <meta charset="UTF-8">
    <meta name="viewport" content="width = device-width,initial-scale=1">
    <title></title>
   <link rel="stylesheet" href="img/index01.css" />
</head>
<body>
    <div class="heading"></div>
    <div class="container">
        <div class="left"></div>
        <div class="main"></div>
        <div class="right"></div>
    </div>
    <div class="footing"></div>
</body>
</html>

*{
    margin: 0px;
    padding: 0px;
}

.heading,
.container,
.footing{
    margin: 10px auto;
}
.heading{
    height: 100px;
    background-color: chocolate;
}
.left,
.right,
.main{
    background-color: cornflowerblue;
}

.footing{
    height: 100px;
    background-color: aquamarine;
}

@media screen and (min-width: 960px){
    .heading,
    .container,
    .footing{
        width: 960px;
    }

    .left,
    .main,
    .right{
        float: left;
        height: 500px;
    }

    .left,
    .right
    {
        width: 200px;
    }
    .main{
        margin-left: 5px;
        margin-right: 5px;
        width: 550px;
    }
    .container{
        height: 500px;
    }

}

@media screen and (min-width: 600px) and (max-width: 960px){
    .heading,
    .container,
    .footing{
        width: 600px;
    }

    .left,
    .main
    {
        float: left;
        height: 400px;
    }
    .right{
        display: none;
    }
    .left{
        width: 160px;
    }
    .main{
        width: 435px;
        margin-left: 5px;
    }
    .container{
        height: 400px;
    }
}

@media screen and (max-width: 600px){
    .heading,
    .container,
    .footing{
        width: 400px;
    }

    .left,
    .right{
        width: 400px;
        height: 100px;
    }
    .main{
        margin-top: 10px;
        width: 400px;
        height: 200px;
    }
    .right{
        margin-top: 10px;
    }
    .container{
        height: 420px;
    }
}