前端案例-3 rem布局移动页面

效果图：
在这里插入图片描述

less+媒体查询+rem
步骤：
(1)下载node（本版本为node-v14.16.0-x64）下载完直接双击下一步直到安装完成（在cmd中输入node -v确认是否安装成功，若安装成功会提示当前版本号，否则安装不成功）
https://pan.baidu.com/s/1rSeVOqsoLuLCqjsYhlNDEQ
提取码：8iyz
(2)在cmd中安装less,命令行中输入npm install -g less,安装完成后输入lessc -v 确认安装是否成功，如果出现当前less版本号则说明成功，否则安装不成功
(3) 在VSCODE 中安装easyless插件，安装步骤就不详说了，直接在vscode里面搜索easyless安装即可

（4）创建目录（里面的CSS文件，是less文件保存后自动生成的，一开始是没有的）

index.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="css/normalize.css">
    <link rel="stylesheet" href="css/index.css">
    <title>苏宁易购</title>
</head>

<body>
    <div class="header">
        <a href="#" class="classify"></a>
        <div class="search">
            <form action="">
                <input type="search" class="input" value="家电采购季">
            </form>
        </div>
        <a href="#" class="login">登录</a>
    </div>
    <div class="banner">
        <img src="upload/banner.gif" alt="">
    </div>
    <div class="ad">
        <a href="#">
            <img src="upload/ad1.gif" alt="">
        </a>
        <a href="#">
            <img src="upload/ad2.gif" alt="">
        </a>
        <a href="#">
            <img src="upload/ad3.gif" alt="">
        </a>
    </div>

    <div class="nav">
        <a href="#"><img src="upload/nav1.png" alt=""> <span>爆款手机</span></a>
        <a href="#"><img src="upload/nav1.png" alt=""></a>
        <a href="#"><img src="upload/nav1.png" alt=""></a>
        <a href="#"><img src="upload/nav1.png" alt=""></a>
        <a href="#"><img src="upload/nav1.png" alt=""></a>
        <a href="#"><img src="upload/nav1.png" alt=""></a>
        <a href="#"><img src="upload/nav1.png" alt=""></a>
        <a href="#"><img src="upload/nav1.png" alt=""></a>
        <a href="#"><img src="upload/nav1.png" alt=""></a>
        <a href="#"><img src="upload/nav1.png" alt=""></a>
    </div>
</body>

</html>

common.less

// 先写上PC端常规尺寸的html文字大小
html{
    
    
    font-size: 50px;
}
//写上移动端常用尺寸的html文字大小
@pieces: 15;

@media screen and (min-width:320px){
    
    
    html{
    
    
        font-size:(320px / @pieces);
    }
}

@media screen and (min-width:340px){
    
    
    html{
    
    
        font-size:(340px / @pieces);
    }
}

@media screen and (min-width:360px){
    
    
    html{
    
    
        font-size:(360px / @pieces);
    }
}

@media screen and (min-width:375px){
    
    
    html{
    
    
        font-size:(375px / @pieces);
    }
}

@media screen and (min-width:384px){
    
    
    html{
    
    
        font-size:(384px / @pieces);
    }
}

@media screen and (min-width:400px){
    
    
    html{
    
    
        font-size:(400px / @pieces);
    }
}

@media screen and (min-width:414px){
    
    
    html{
    
    
        font-size:(414px / @pieces);
    }
}

@media screen and (min-width:424px){
    
    
    html{
    
    
        font-size:(424px / @pieces);
    }
}

@media screen and (min-width:480px){
    
    
    html{
    
    
        font-size:(480px / @pieces);
    }
}

@media screen and (min-width:540px){
    
    
    html{
    
    
        font-size:(540px / @pieces);
    }
}

@media screen and (min-width:720px){
    
    
    html{
    
    
        font-size:(720px / @pieces);
    }
}

@media screen and (min-width:750px){
    
    
    html{
    
    
        font-size:(750px / @pieces);
    }
}

a{
    
    
    text-decoration: none;
    color: black;
}

index.less

@import "common";


body {
    
    
    min-width: 320px;
    width: 15rem;
    margin: 0 auto;
    line-height: 1.5;
    font-family: Arial, Helvetica, sans-serif;
    background: #F2F2F2;
}
@baseFontsize: 50;
.header{
    
    
    display: flex;
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    // min-width: 320px;
    width: 15rem;
    height: (88rem / @baseFontsize);
    background:#FFC001 ;
.classify{
    
    
    width: (44rem / @baseFontsize);
    height: (70rem /@baseFontsize);
    // background: blueviolet;
    margin: (10rem / @baseFontsize) (20rem / @baseFontsize) ;
    background: url('../imgs/classify.png') no-repeat;
    background-size: 100%;
}
.search{
    
    
    flex: 1;
    width: 100%;
    // background-color: cornflowerblue;
    input{
    
    
        outline: none;
        border: 0;
        width: 100%;
        height: (66rem / @baseFontsize);
        margin-top: (12rem / @baseFontsize);
        border-radius: (33rem / @baseFontsize);
        background-color: #fff2cc;
        font-size: (25rem / @baseFontsize);
        color: rgb(117, 117, 117);
        padding-left: (55rem / @baseFontsize);

    }
}

.login{
    
    
    width: (75rem / @baseFontsize);
    height: (70rem / @baseFontsize);
    // background-color: blue;
    margin: (10rem / @baseFontsize);
    color: white;
    font-size: (25rem / @baseFontsize);
    text-align: center;
    line-height:(70rem / @baseFontsize) ;
}

}

.banner{
    
    
    width: (750rem / @baseFontsize);
    height: (368rem / @baseFontsize);
    img{
    
    
        width: 100%;
    }
}

.ad{
    
    
    display: flex;
    width: (750rem / @baseFontsize);
    height: (199rem / @baseFontsize);
    a{
    
    
        flex: 1;
        img{
    
    
            width: 100%;
        }

    }
}

.nav{
    
    
    margin-top: (10rem / @baseFontsize);
    width: (750rem / @baseFontsize);
    // height: (280rem / @baseFontsize);
    a{
    
    
        float: left;
        width: (150rem / @baseFontsize);
        height: (140rem / @baseFontsize);  
        // background-color: green;
        text-align: center;
        line-height: (25rem / @baseFontsize);
        img{
    
    
            display: block;
            margin-top:(10rem / @baseFontsize);
            margin-left: 50%;
            transform: translateX(-50%);
            width: (82rem / @baseFontsize);
            height: (82rem / @baseFontsize);  
        }
        span{
    
    
            
            font-size: (25rem / @baseFontsize);
            // line-height: (140rem / @baseFontsize);


        }
    }
}

normalize.css同https://blog.csdn.net/KathyLJQ/article/details/115219233的normalize.css

flexible.js+rem
步骤：
(1)下载flexible.js (版本lib-flexible-2.0）
下载地址：https://pan.baidu.com/s/1LBlVcIPJYmx2cxvZt_CPHg
提取码：snxt

(2)创建目录（js文件夹中的flexible.js 是由步骤（1）文件夹中的index.js 重命名为flexible.js后拷贝进来的）
在这里插入图片描述
（3）在VScode中安装cssrem插件，此处就不详细说了，直接搜索cssrem安装即可

如何设置cssrem的html基础字体：https://www.bilibili.com/video/BV1jU4y1Y7h9
html 代码同上述的第一个方案，下面直接放index.css

/*  */

a {
    
    
    text-decoration: none;
    color: black;
}


/* 限定屏幕宽度超过750px的html字体大小 */

@media screen and (min-width:750px) {
    
    
    html {
    
    
        font-size: 75px !important;
    }
}

body {
    
    
    min-width: 320px;
    max-width: 750px;
    width: 10rem;
    margin: 0 auto;
    line-height: 1.5;
    font-family: Arial, Helvetica, sans-serif;
    background: #F2F2F2;
}

.header {
    
    
    display: flex;
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 10rem;
    height: 1.173333rem;
    background: #FFC001;
}

.header .classify {
    
    
    width: .586667rem;
    height: .933333rem;
    margin: .133333rem .266667rem;
    background: url('../imgs/classify.png') no-repeat;
    background-size: 100%;
}

.header .search {
    
    
    flex: 1;
    width: 100%;
}

.header .search input {
    
    
    outline: none;
    border: 0;
    width: 100%;
    height: .88rem;
    margin-top: .2rem;
    border-radius: .44rem;
    background-color: #fff2cc;
    font-size: .333333rem;
    color: #757575;
    padding-left: .733333rem;
}

.header .login {
    
    
    width: 1rem;
    height: .933333rem;
    margin: .2rem;
    color: white;
    font-size: .333333rem;
    text-align: center;
    line-height: .933333rem;
}

.banner {
    
    
    width: 10rem;
    height: 4.906667rem;
}

.banner img {
    
    
    width: 100%;
}

.ad {
    
    
    display: flex;
    width: 10rem;
    height: 2.653333rem;
}

.ad a {
    
    
    flex: 1;
}

.ad a img {
    
    
    width: 100%;
}

.nav {
    
    
    margin-top: .133333rem;
    width: 10rem;
}

.nav a {
    
    
    float: left;
    width: 2rem;
    height: 1.866667rem;
    text-align: center;
    line-height: .333333rem;
}

.nav a img {
    
    
    display: block;
    margin-top: .133333rem;
    margin-left: 50%;
    transform: translateX(-50%);
    width: 1.093333rem;
    height: 1.093333rem;
}

.nav a span {
    
    
    font-size: .333333rem;
}

*/

前端案例-3 rem布局移动页面

猜你喜欢