Auto adaptation of CSS web page responsive layout to PC / pad / mobile devices

Time:2021-1-13

preface

Now there are many devices, including PC, iPad, mobile phone, smart watch and smart TV. If there is no responsive layout, then the computer web page displayed on the mobile phone or iPad, is very poor experience, inconvenient operation, visual fatigue, so we develop web pages to do a good job of responsive layout.

index

<!DOCTYPE html>
<html>
<head>
    < title > responsive layout
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
    <link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
    <div id="content">
        < div id = "header" > head < / div >
        < div id = "left" > left < / div >
        < div id = "center" > middle < / div >
        < div id = "right" > right < / div >
        < div id = "footer" > bottom < / div >
    </div>
</body>
</html>

CSS

*{
    margin: 0;
    padding: 0;
}

/*The width of PC terminal is more than 1000px*/
@media screen and (min-width: 1000px) {
    #content{
        width: 960px;
        margin:0 auto;
    }

    #header{
        width: 100%;
        line-height: 100px;
        float: left;
        background: #333;
        color: #fff;
        text-align: center;
        font-size: 30px;
        margin-bottom: 10px;
    }

    #left{
        width: 200px;
        line-height: 400px;
        text-align: center;
        background: #333;
        float: left;
        font-size: 30px;
        color: #fff;
        margin-right: 10px;
    }

    #center{
        width: 540px;
        line-height: 400px;
        text-align: center;
        background: #333;
        float: left;
        font-size: 30px;
        color: #fff;
    }

    #right{
        width: 200px;
        line-height: 400px;
        text-align: center;
        background: #333;
        float: right;
        font-size: 30px;
        color: #fff;
    }

    #footer{
        width: 960px;
        height: 200px;
        background: #333;
        color: #fff;
        line-height: 200px;
        font-size: 30px;
        text-align: center;
        float: left;
        margin-top: 10px;
    }
}


/*The width of pad is 640-1000*/
@media screen and (min-width: 640px) and (max-width: 1000px) {
    #content{
        width: 600px;
        margin:0 auto;
    }

    #header{
        width: 100%;
        line-height: 100px;
        float: left;
        background: #333;
        color: #fff;
        text-align: center;
        font-size: 30px;
        margin-bottom: 10px;
    }

    #left{
        width: 200px;
        line-height: 400px;
        text-align: center;
        background: #333;
        float: left;
        font-size: 30px;
        color: #fff;
        margin-right: 10px;
    }

    #center{
        width: 390px;
        line-height: 400px;
        text-align: center;
        background: #333;
        float: left;
        font-size: 30px;
        color: #fff;
    }

    #right{
        width: 600px;
        line-height: 300px;
        text-align: center;
        background: #333;
        float: left;
        font-size: 30px;
        color: #fff;
        margin-top: 10px;
    }

    #footer{
        width: 600px;
        height: 200px;
        background: #333;
        color: #fff;
        line-height: 200px;
        font-size: 30px;
        text-align: center;
        float: left;
        margin-top: 10px;
    }
}


/*The width of mobile terminal is less than 640*/
@media screen and (max-width: 639px){
    #content{
        width: 400px;
        margin:0 auto;
    }

    #header{
        width: 100%;
        line-height: 100px;
        float: left;
        background: #333;
        color: #fff;
        text-align: center;
        font-size: 30px;
        margin-bottom: 10px;
    }

    #left{
        width: 100%;
        line-height: 150px;
        text-align: center;
        background: #333;
        float: left;
        font-size: 30px;
        color: #fff;
        margin-bottom: 10px;
    }

    #center{
        width: 100%;
        line-height: 300px;
        text-align: center;
        background: #333;
        float: left;
        font-size: 30px;
        color: #fff;
    }

    #right{
        width: 100%;
        line-height: 150px;
        text-align: center;
        background: #333;
        float: left;
        font-size: 30px;
        color: #fff;
        margin-top: 10px;
    }

    #footer{
        width: 100%;
        height: 200px;
        background: #333;
        color: #fff;
        line-height: 200px;
        font-size: 30px;
        text-align: center;
        float: left;
        margin-top: 10px;
    }
}

Control the layout of the web page through @ media screen and, for example
Min width represents the minimum limit and max width represents the maximum limit.

PC terminal

Auto adaptation of CSS web page responsive layout to PC / pad / mobile devices

Pad terminal

Auto adaptation of CSS web page responsive layout to PC / pad / mobile devices

Mobile terminal

Auto adaptation of CSS web page responsive layout to PC / pad / mobile devices

Experience demo

PC end: click experience
Pad and mobile: code scanning experience

Auto adaptation of CSS web page responsive layout to PC / pad / mobile devices

author

Author:TANKING
Web:http://www.likeyunba.com
Date:2020-2-15
WeChat:face6009