• 通过H5C3完成响应式网页（VIVO官网）

    该响应式网页是通过CSS3中的媒体查询完成的

    HTML代码如下

    <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>vivo智能手机官方网站-5G智慧旗舰NEX 3</title>
    <link rel="stylesheet" href="font/iconfont.css">
    <link rel="stylesheet" href="css/reset.css">
    <link rel="stylesheet" href="css/base.css">
    <link rel="stylesheet" href="css/index.css">
    <link rel="stylesheet" href="css/index-pad.css" media="screen and (max- 1199px)">
    <link rel="stylesheet" href="css/index-phone.css" media="screen and (max- 768px)">
    <link rel="shortcut icon" href="vivoLogo.ico" type="image/x-icon">
</head>
<body>
    <div class="header">
        <div class="headerTop">
            <ul class="headerLeft clearfix">
                <li><a href="#">品牌</a></li>
                <li><a href="#">Funtouch OS</a></li>
                <li><a href="#">体验店</a></li>
                <li><a href="#">政企业务</a></li>
                <li><a href="#">社区</a></li>
            </ul>
            <ul class="headerRight">
                <li><a href="#">购物车</a></li>
                <li><a href="#">注册</a></li>
                <li>|</li>
                <li><a href="#">登录</a></li>
            </ul>
        </div>
        <div class="headerPhone">
            <a href="#" class="iconfont icon-caidan"></a>
            <h1><a href="#" class="iconfont icon-vivo"></a></h1>
            <a href="#" class="iconfont icon-baobao"></a>
        </div>
        <div class="headerBottom">
            <h1 class="logo"><a href="#" class="iconfont icon-vivo"></a></h1>
            <ul class="nav clearfix nav1">
                <li><a href="#">iQOO专区</a></li>
                <li><a href="#">NEX系列</a></li>
                <li><a href="#">X系列</a></li>
                <li><a href="#">Z系列</a></li>
                <li><a href="#">Y系列</a></li>
                <li><a href="#">U系列</a></li>
                <li><a href="#">商城</a></li>
                <li><a href="#">服务</a></li>
            </ul>
            <ul class="nav clearfix nav2">
                <li><a href="#">iQOO</a></li>
                <li><a href="#">NEX</a></li>
                <li><a href="#">X</a></li>
                <li><a href="#">Z</a></li>
                <li><a href="#">Y</a></li>
                <li><a href="#">U</a></li>
                <li><a href="#">商城</a></li>
                <li><a href="#">服务</a></li>
            </ul>
            <div class="search">
                <a href="#" class="iconfont icon-icon-"></a>
            </div>
        </div>
    </div>
    <div class="main">
        <div class="mainTop">
            <ul>
                <li><a href="#"><img src="images/banner.jpg" alt=""></a></li>
                <li><a href="#"><img src="images/banner-phone.jpg" alt=""></a></li>
            </ul>
            <ol class="clearfix">
                <li></li>
                <li></li>
                <li></li>
            </ol>
            <div>
                <i></i>
                <i></i>
                <i></i>
                <p>
                    <span>立即前往</span>
                    <b></b>
                </p>
            </div>
        </div>
        <div class="mainBottom">
            <div>
                <div class="bottomText">
                    <h2>NEX旗舰版</h2>
                    <span>了解详情</span>
                </div>
                <a href="#">
                    <img src="images/vivo-promos-1.jpg" alt="">
                </a>
            </div>
            <div>
                <div class="bottomText">
                    <h2>玩家严重IQOO是什么样?</h2>
                    <span>立即围观</span>
                </div>
                <a href="#">
                    <img src="images/vivo-promos-2.jpg" alt="">
                </a>
            </div>
            <div>
                <div class="bottomText">
                    <h2>Z1青春版</h2>
                    <span>了解详情</span>
                </div>
                <a href="#">
                    <img src="images/vivo-promos-3.jpg" alt="">
                </a>
            </div>
            <div>
                <div class="bottomText">
                    <h2>iQOO新品晒单</h2>
                    <span>旗舰新品等你拿</span>
                </div>
                <a href="#">
                    <img src="images/vivo-promos-4.jpg" alt="">
                </a>
            </div>
        </div>
    </div>
    <div class="footer">
        <div class="footerIn">
            <div class="footerTop clearfix">
                <div class="footerTopLeft fl">
                    <dl>
                        <dt>热门链接</dt>
                        <dd>NEX双屏版</dd>
                        <dd>X23</dd>
                        <dd>Z3</dd>
                        <dd>vivo摄影</dd>
                        <dd>查找手机</dd>
                        <dd>常见问题</dd>
                    </dl>
                    <dl>
                        <dt>在线购买</dt>
                        <dd>官方商城</dd>
                        <dd>选购手机</dd>
                        <dd>选购配件</dd>
                        <dd>政企服务</dd>
                        <dd>以旧换新</dd>
                        <dd>服务保障</dd>
                    </dl>
                    <dl>
                        <dt>服务支持</dt>
                        <dd>服务首页</dd>
                        <dd>服务网点查询</dd>
                        <dd>真伪查询</dd>
                        <dd>服务政策</dd>
                        <dd>预约维修</dd>
                        <dd>维修配件价格</dd>
                    </dl>
                    <dl>
                        <dt>vivo社区</dt>
                        <dd>社区首页</dd>
                        <dd>摄影专区</dd>
                        <dd>贴吧</dd>
                        <dd>兴趣部落</dd>
                        <dd>新手课堂</dd>
                        <dd>社区规则</dd>
                    </dl>
                    <dl>
                        <dt>关于vivo</dt>
                        <dd>vivo简介</dd>
                        <dd>工作机会</dd>
                        <dd>新闻资讯</dd>
                        <dd>采购平台</dd>
                        <dd>开发者平台</dd>
                    </dl>
                </div>
                <div class="footerTopRight fr">
                    <p><a href="#" class="iconfont icon-liaotian">在线客服</a>
                    <p>400-678-9688</p>
                    <p>24小时全国服务热线</p>
                </div>
            </div>
            <div class="footerBottom clearfix">
                <div class="footerBottomRight fr">
                    <a href="#">关于VIVO</a>
                    <a href="#"class="iconfont icon-wanggediqiu">中国</a>
                </div>
                <div class="footerBottomLeft fl">
                    <i>Copyright ©2011-2019 广东步步高电子工业有限公司 版权所有 保留一切权利</i>
                    |
                    <a href="#">隐私政策</a>
                    |
                    <a href="#">法律声明</a>
                    |
                    <a href="#">粤B2-20080267</a>
                    |
                    <a href="#">粤ICP备05100288号</a>
                    <img src="images/gssw-icon.png" alt="">
                </div>
            </div>
        </div>
    </div>
</body>
</html>

    pc端的css文件名为index.css，当浏览器的宽度width >= 1200px时，默认的就是PC端，它也是默认的css文件，代码如下：

    /*顶部开始*/
.header{
    width: 100%;
    position: absolute;
    left: 0;
    top: 0;
    z-index: 10;
}
.header>.headerTop{
    width: 100%;
    height: 40px;
    background: #333;
    /*height: 40px;*/
    line-height: 40px;
    padding: 0 48px;
    box-sizing: border-box;
    display: flex;
    justify-content: space-between;
}
.headerTop>ul{
    list-style: none;
    color: #ccc;
}
.headerTop>ul>li{
    float: left;
    margin-right: 42px;

}
.headerTop>ul>li:last-child{
    margin-right: 0;
}
.headerTop>ul>li>a{
    font-size: 14px;
    color: #ccc;
    font-weight: 400;
}
.headerTop>ul>li>a:hover{
    color: #666;
}
.header>.headerBottom{
    width: 1200px;
    height: 60px;
    margin: 0 auto;
    /*background: red;*/
    display: flex;
    justify-content: space-between;
}
.headerBottom>.logo{
    height: 60px;
    line-height: 60px;
}
.headerBottom>.logo>a{
    color: #fff;
    font-size: 100px;
}
.headerBottom>.logo:hover a{
    color: #417aff;
}
.headerBottom>.nav{
    list-style: none;
    /*margin-left: 135px;*/
    height: 60px;
    line-height: 60px;
    /*float: left;*/
}
.headerBottom>.nav>li{

    float: left;
    margin: 0 28px;
}
.headerBottom>.nav>li>a{
    font-size: 16px;
    color: #000;
}
.headerBottom>.nav>li:hover a{
    color: #417aff;
}
.headerBottom>.search{
    line-height: 60px;
}
.headerBottom>.search>a{
    font-size: 30px;
    color: #ccc;
}
/*顶部结束*/
/*内容开始*/
.main{
    width: 100%;
    margin-top: 40px;
}
.main>.mainTop{
    width: 100%;
    position: relative;
}
.main>.mainTop img{
    width: 100%;
    vertical-align: bottom;
}
.main>.mainTop>ol{
    list-style: none;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 40px;
}
.main>.mainTop>ol>li{
    float: left;
    width: 55px;
    height: 4px;
    background: rgba(255,255,255,0.5);
    margin: 0 8px;
}
.main>.mainTop>div{
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    left: 20%;
}
.main>.mainTop>div>i{
    display: block;
    width: 304px;
    height: 45px;
    /*background-color: red;*/
    background-image: url("../images/vivo-banner-title1.png");
    background-repeat: no-repeat;

}
.main>.mainTop>div>i:nth-child(2){
    background-image: url("../images/vivo-banner-title2.png");
    background-repeat: no-repeat;
}
.main>.mainTop>div>i:nth-child(3){
    background-image: url("../images/vivo-banner-title3.png");
    background-repeat: no-repeat;
}
.main>.mainTop>div>p{
    width: 304px;
    text-align: center;
    color: rgba(255,255,255,0.5);
    margin-top: 30px;
    transition: all 0.5s;
}
.main>.mainTop>div>p:hover{
    color: #fff;
}
.main>.mainTop>div>p:hover b{
    width: 80px;
    background: #fff;
}
.main>.mainTop>div>p>span{
    display: block;
}
.main>.mainTop>div>p>b{
    display: inline-block;
    width: 30px;
    height: 2px;
    background: rgba(255,255,255,0.5);
    margin-bottom: 10px;
    transition: all 0.5s;
}
.main>.mainBottom{
    width: 100%;
    display: flex;
    margin-top: 5px;
}
.main>.mainBottom>div{
    flex: 1;
    overflow: hidden;
    position: relative;
    height: 300px;
}
.main>.mainBottom>div img{
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}
.main>.mainBottom>div>.bottomText{
    position: absolute;
    top: 26px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 7;
    text-align: center;
    color: #333;

}
.main>.mainBottom>div:nth-child(even)>.bottomText{
    color: #fff;
}
.main>.mainBottom>div>.bottomText>h2{
    /*height: 21px;*/
    /*line-height: 21px;*/
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 10px;
}
.main>.mainBottom>div>.bottomText>span{
    font-size: 14px;text-align: center;
}
/*内容结束*/
/*底部开始*/
.footer{
    width: 100%;
}
.footer>.footerIn{
    width: 1200px;
    margin: 0 auto;
}
.footerIn>.footerTop{
    width: 100%;
    /*height: 600px;*/
    margin: 0 auto;
    padding-top: 60px;
    padding-bottom: 76px;
    border-bottom: 1px solid #666;
}
.footer>.footerIn>.footerTop>.footerTopLeft{
    width: 75%;
    display: flex;
    justify-content: space-between;
}
.footerTop>.footerTopLeft>dl>dt{
    font-size: 16px;
    font-weight: 700;
    line-height: 17px;
    margin-bottom: 40px;
}
.footerTop>.footerTopLeft>dl>dd{
    color: #666;
    font-size: 14px;
    line-height: 17px;
    margin-bottom: 18px;
}
.footer>.footerIn>.footerTop>.footerTopRight{
    width: 25%;
    text-align: center;
}
.footerTop>.footerTopRight>p>a{
    font-size: 22px;
    color: #333;
}
.footerTop>.footerTopRight>p:nth-child(2){
    color: #415fff;
    font-size: 24px;
    margin-top: 60px;
}
.footerTop>.footerTopRight>p:nth-child(3){
    font-size: 14px;
    color: #333;
}
.footerBottom>.footerBottomLeft{
    padding: 10px 0;
    font-size: 12px;
    color: #666;
}
.footerBottom>.footerBottomLeft i{
    font-style: normal;
    font-size: 12px;
    color: #666;
}
.footerBottom>.footerBottomLeft a{
    font-size: 12px;
    color: #666;
}
.footerBottomRight a{
    font-size: 12px;
    color: #666;
}
.footerBottomRight a:last-child{
    margin-left: 60px;
}
/*底部结合*/
/*响应式网页兼容开始*/
.nav2{
    display: none;
}
.headerPhone{
    display: none;
}
.main>.mainTop>ul>li:nth-child(2){
    display: none;
}
/*响应式网页兼容结束*/

    pad端的css文件名为index-pad.css，当浏览器的宽度width <= 1199px时，就会调用该css文件，代码如下：

    /*顶部开始*/
.nav2{
    display: block;
}
.nav1{
    display: none;
}
.header>.headerBottom{
    width: 100%;
    padding: 0 40px;
    box-sizing: border-box;
}
.headerBottom>.nav>li{
    margin: 0 20px;
}
/*顶部结束*/
/*内容开始*/
.main>.mainTop>div>i{
    width: 200px;
    height: 30px;
    background-image: url("../images/vivo-banner-title1-mini.png");
}
.main>.mainTop>div>i:nth-child(2){
    background-image: url("../images/vivo-banner-title2-mini.png");
}
.main>.mainTop>div>i:nth-child(3){
    background-image: url("../images/vivo-banner-title3-mini.png");
}
.main>.mainTop>div>p{
    width: 200px;
    margin-top: 20px;
}
.main>.mainBottom{
    flex-wrap: wrap;
    margin-top: 0;
}
.main>.mainBottom>div{
    flex: none;
    width: 50%;
    margin-top: 5px;
}
/*内容结束*/
/*底部开始*/
.footer>.footerIn{
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
.footerBottomLeft{
    float: none;
    width: auto;
    margin-right: 25%;
}
/*底部结束*/

    手机端的css文件名为index-phone.css，当浏览器的宽度width <= 768px时，就会调用该css文件，具体代码如下：

    /*顶部开始*/
.header>.headerTop{
    display: none;
}
.header>.headerBottom{
    display: none;
}
.header>.headerPhone{
    height: 100%;
    display: flex;
    justify-content: space-between;
    line-height: 100px;
}
.header>.headerPhone>a{
    font-size: 25px;
    color: #fff;
}
.header>.headerPhone>h1>a{
    font-size: 100px;
    color: #fff;
}
/*顶部结束*/
/*内容开始*/
.main{
    margin-top: 0;
}
.main>.mainTop>ul>li:nth-child(1){
    display: none;
}
.main>.mainTop>ul>li:nth-child(2){
    display: block;
}
.main>.mainTop>div{
    display: none;
}
.main>.mainBottom>div{
    width: 100%;
}
.main>.mainBottom>div img{
    width: 100%;
    height: 100%;
}
/*内容结束*/
/*底部开始*/
.footer>.footerIn{
    padding: 0 60px;
    box-sizing: border-box;
}
.footer>.footerIn>.footerTop>.footerTopLeft{
    float: none;
    width: 100%;
    flex-wrap: wrap;
}
.footerTop>.footerTopLeft>dl{
    width: 100%;
}
.footer>.footerIn>.footerTop>.footerTopRight{
    float: none;
    width: 100%;
}
.footerTop>.footerTopLeft>dl>dt{
    font-size: 25px;
    color: #666;
    font-weight: 400;
    padding-bottom: 20px;
}
.footerTop>.footerTopLeft>dl>dt::after{
    content: "";
    float: right;
    width: 20px;
    height: 20px;
    background-image: url(../images/add.png);
    background-repeat: no-repeat;
    background-position: center center;
    background-size: 20px 20px;
}
.footerTop>.footerTopLeft>dl>dd{
    display: none;
}
.footer>.footerIn>.footerTop>.footerTopRight p:nth-child(1){
    float: left;
}
.footer>.footerIn>.footerTop>.footerTopRight p:nth-child(1) a{
    font-size: 30px;
    color: #415fff;
}
.footer>.footerIn>.footerTop>.footerTopRight p{
    text-align: right;
}
.footer>.footerIn>.footerTop>.footerTopRight p:nth-child(3){
    font-size: 18px;
}
.footer>.footerIn>.footerBottom>.footerBottomRight{
    float: none;
}
.footer>.footerIn>.footerBottom>.footerBottomRight a{
    font-size: 25px;
    padding: 10px 0;
}
.footerBottom>.footerBottomLeft{
    font-size: 18px;
}
.footerBottom>.footerBottomLeft i,.footerBottom>.footerBottomLeft a{
    font-size: 18px;
}
/*底部结束*/

    完成之后的具体样式如下：

    1，pc端界面

     

    2,pad端界面

    3，手机端界面
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  • 原文地址：https://www.cnblogs.com/TomHe789/p/12373317.html
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