无框架实现响应式布局

1、针对移动设备设置meta：<meta name="viewport" content="width=device-width,minimum-scale=1.0,maximum-scale=1.0"/>；

2、测试手机屏幕的宽度，基于此宽度对页面进行订制化布局与渲染

3、针对不同设备定制页面，利用js判断客户端设备并跳转到合适页面

html5 和 css3 实现代码

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name ="viewport" content="width = device-width,initial-scale=1">
    <title>index01</title>
    <style type="text/css">
        *{
    margin:0px;
    padding: 0px;
}
.heading,
.container,
.footing{
    margin: 10px auto;
}

.heading{
    height: 100px;
    background-color: red;
}
.left,
.right,
.main{
    height: 300px;
    background-color: yellow;
}
.footing{
    height: 100px;
    background-color: gray;
}
<!--media="only screen and (max-width:640px)" 这句话的意思是:只要当渲染屏幕的宽度不大于640px的时候才会使用这个样式表-->
@media screen and (min-width: 960px){
    .heading,
    .container,
    .footing{
        width:960px;

    }
    .left,
    .main,
    .right{
        float: left;
        height: 500px;
    }
    .left,
    .right{
        width:200px;

    }
    .main{
        margin: 0px 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;
    }
}
    </style>
</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>

 

posted @ 2017-10-23 11:15  learn_by_doing  阅读(352)  评论(0)  编辑  收藏  举报