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QQ首页 案例

一、知识点

①background-attachment属性设置背景图像是否固定或者随着页面的其余部分滚动。scroll默认值。背景图像会随着页面其余部分的滚动而移动。fixed当页面的其余部分滚动时,背景图像不会移动。

②视觉插件stellar

  • 视差滚动指网页滚动过程中,多层次的元素进行不同程度的移动,视觉上形成立体运动效果的网页展示技术。主要核心就是前景和背景以不同速度移动,从而创造出3D效果。利用background-attachment属性实现。stellar.js是一个jQuery插件,能很容易地给网站添加视差滚动效果
  • 引入js包
<script src="path/to/jquery/jquery.min.js"></script>
<script src="path/to/jquery.stellar.min.js"></script>
  • 引用HTML和css样式
<div class="content" id="content1">
    <p>TEXT HERE</p>
</div>
<div class="content" id="content2">
    <p>TEXT HERE</p>
</div>
<div class="content" id="content3" data-stellar-background-ratio="0.5">
    <p>TEXT HERE</p>
</div>
<div class="content" id="content4" data-stellar-background-ratio="0.5">
    <p>TEXT HERE</p>
</div>
<div class="content" id="content5" data-stellar-background-ratio="0.5">
    <p>TEXT HERE</p>
</div>
<div class="content" id="content6" data-stellar-background-ratio="0.5">
    <p>TEXT HERE</p>
</div> 
//css样式中设置content背景等
  • js 调用函数
$.stellar({
    horizontalScrolling: false,
    responsive: true
});
  • 详细参数

二、思路

①页面基础结构

②导航部分

③展示部分

④语音部分、文件部分、兴趣部分

⑤底部部分

⑥使用插件stellar

⑦文件目录结构

三、代码实现

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>QQ首页</title>
    <link rel="stylesheet" href="css/index.css">
    <!-- [if lte IE 8] -->
        <script src="js/html5shiv.js"></script>
    <!-- endif -->
</head>
<body>
    <!-- 导航 -->
    <nav class="qq_nav">
        <div class="wrapper">
            <a href="#" class="logo"></a>
            <ul class="nav">
                <li><a href="#">首页</a></li>
                <li><a href="#">下载</a></li>
                <li><a href="#">动态</a></li>
            </ul>
            <a href="#" class="register">注册</a>
            <div class="other">
                <ul>
                    <li><a href="#">QQ安全</a></li>
                    <li><a href="#">QQ会员</a></li>
                    <li><a href="#">登录</a></li>
                </ul>
                <span>当前在线人数:288,597,005</span>
            </div>
        </div>
    </nav>
    <!-- 展示 -->
    <section class="qq_banner">
        <img src="images/banner-logo.png" alt="">
        <img src="images/banner-dowload.png" alt="">
        <img src="images/banner-list.png" alt="">
        <img src="images/banner-produst.png" alt="">
    </section>
    <!-- 语音 -->
    <section class="qq_sound">
        <h1>I'm QQ - 每一天,乐在沟通</h1>
        <div class="bg" data-stellar-background-ratio="0.3"></div>
        <div class="content">
            <div class="ipone"></div>
            <h2>沟通,是跨越<br>千山万水的亲切声音</h2>
            <p>无论何时何地,你都能自由享受QQ在各类<br>终端上带来的高清通话,与好友一起想聊多久聊多久</p>
        </div>
    </section>
    <!-- 文件 -->
    <section class="qq_file">
        <div class="bg" data-stellar-background-ratio="0.3"></div>
        <div class="content">
            <div class="mac"></div>
            <h2>沟通,是随时随地<br>爽快收发</h2>
            <p>通过QQ,电脑和手机上的文件都能收发自如,<br>更有手机在线查阅,轻松你的工作和生活。</p>
        </div>
    </section>
    <!-- 兴趣 -->
    <section class="qq_interest">
        <div class="bg" data-stellar-background-ratio="0.3"></div>
        <div class="content">
            <div class="phone"></div>
            <h2>沟通,是志同道合<br>的他们放肆青春</h2>
            <p>即使世界很大,你也不会孤单,在兴趣部落<br>有和你一样的人,期待着和你一起发现精彩</p>
        </div>
    </section>
    <!--S footer-->
    <footer class="qq_footer">
        <img src="images/foot.png" alt="">
    </footer>
    <script src="js/jquery.min.js"></script>
    <script src="js/jquery.stellar.js"></script>
    <script src="js/index.js"></script>
</body>
</html>
html
/* =============reset css============== */
*{
    /*通配符选择器,案例特殊处理,实际开发少用  */
    margin: 0;
    padding: 0;
}
body{
    font-size: 14px;
    font-family: "Microsoft YaHei",sans-serif;
    color: #333;
}
ul{
    list-style: none;
}
a{
    color: #333;
    text-decoration: none;
}
/* =============moudle css============= */
/* nav start */
.qq_nav{
    height: 150px;
    background: url("../images/nav-bg.png") repeat-x;
}
.qq_nav .wrapper{
    width: 1080px;
    height: 75px;
    margin: 0 auto;
}
.qq_nav .wrapper .logo{
    width: 100px;
    height: 75px;
    background: url("../images/nav-logo.png") no-repeat center;
    float: left;
}
.qq_nav .wrapper .nav{
    float: left;
}
.qq_nav .wrapper .nav li{
    float: left;
    font-size: 18px;
    line-height: 75px;
    margin-left: 20px;
}
.qq_nav .wrapper .nav a{
    display: block;
    padding: 0 20px;
}
.qq_nav .wrapper .nav a:hover{
    background: #12b7f5;
}
.qq_nav .wrapper .register{
    float: left;
    height: 36px;
    width: 96px;
    text-align: center;
    line-height: 36px;
    font-size: 16px;
    background: #12b7f5;
    color: #fff;
    border-radius: 18px;
    margin: 19px 0 0 200px;
}
.qq_nav .wrapper .other{
    float: left;
    width: 250px;
    height: 75px;
}
.qq_nav .wrapper .other ul{
    width: 250px;
}
.qq_nav .wrapper .other li{
    float: left;
    margin-left: 40px;
}
.qq_nav .wrapper .other a{
    font-size: 14px;
    text-shadow: 0 0 2px #333;
    height: 50px;
    line-height: 50px;  
}
.qq_nav .wrapper .other span{
    float: right;
}

/* banner start */
.qq_banner{
    height: 1100px;
    background: url("../images/banner-bg.jpg") no-repeat center top;
    padding-top: 150px;
}
.qq_banner img{
    display: block;
    margin: 20px auto 0;
}
.qq_banner img:last-child{
    width: 100%;/* 自适应,等比例缩放 */
}

/* qq_sound Start */
.qq_sound h1{
    height: 300px;
    background:url("../images/sound-text.png") no-repeat center/cover;
    font-size: 0;
}
.qq_sound .bg{
    height: 500px;
    background: url("../images/sound-bg.jpg") no-repeat center/cover;
}
.qq_sound .content{
    height: 500px;
    width: 980px;
    margin: 0 auto;
    position: relative;
}
.qq_sound .content .ipone{
    position: absolute;
    left: 0;
    top: -200px;
    width: 700px;
    height: 700px;
    background: url("../images/sound-phone.png") no-repeat center top/cover;
}
.qq_sound .content h2{
    float: right;
    padding-top: 100px;
    width: 500px;
    text-align: center;
    font-size: 40px;
}
.qq_sound .content p{
    padding-top: 50px;
    float: right;
    width: 500px;
    text-align: center;
    font-size: 18px;
    text-shadow: 0 0 2px #333;
}

/* qq_file start */
.qq_file .bg{
    height: 500px;
    background: url("../images/file-bg.jpg") no-repeat center/cover;
}
.qq_file .content{
    height: 500px;
    width: 980px;
    margin: 0 auto;
    position: relative;
}
.qq_file .content .mac{
    position: absolute;
    right: -60px;
    top: 100px;
    width: 600px;
    height: 340px;
    background: url("../images/file-mac.png") no-repeat center top/cover;
}
.qq_file .content h2{
    float: left;
    padding-top: 100px;
    width: 500px;
    text-align: center;
    font-size: 40px;
}
.qq_file .content p{
    padding-top: 50px;
    float: left;
    width: 500px;
    text-align: center;
    font-size: 18px;
    text-shadow: 0 0 2px #333;
}

/* qq_interest start  */
.qq_interest .bg{
    height: 500px;
    background: url("../images/in-bg.jpg") no-repeat center/cover;
}
.qq_interest .content{
    height: 500px;
    width: 980px;
    margin: 0 auto;
    position: relative;
}
.qq_interest .content .phone{
    position: absolute;
    left: 0px;
    top: 0px;
    width: 344px;
    height: 500px;
    background: url("../images/in-phone.png") no-repeat center top/cover;
}
.qq_interest .content h2{
    float: right;
    padding-top: 100px;
    width: 500px;
    text-align: center;
    font-size: 40px;
}
.qq_interest .content p{
    padding-top: 50px;
    float: right;
    width: 500px;
    text-align: center;
    font-size: 18px;
    text-shadow: 0 0 2px #333;
}
/*footer 图片代替省略*/
/* 插件 */
.qq_sound .bg,.qq_file .bg, .qq_interest.bg{
    background-attachment: fixed;
}
css
$(function(){
    /**
     * 1.引入
     * 2.结构data-stellar-background-ratio="0.3"
     * 3.样式bg 需要background-attachment: fixed;
     * 4.初始化插件
     */
    $.stellar({
       horizontalScrolling: false,
       responsive: true
    });
});
js

四、效果展示

posted @ 2018-07-02 01:32  澎湃_L  阅读(230)  评论(0编辑  收藏  举报