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+<!DOCTYPE html>
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+<html lang="en">
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+
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+<head>
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+ <meta charset="UTF-8">
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
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+ <title>Document</title>
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+ <style>
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+ .container {
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+ max-width: 980px;
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+ margin: 0 auto;
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+ }
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+
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+ header,
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+ nav,
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+ footer {
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+ background-color: #999;
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+ color: white;
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+ font-size: 35px;
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+ font-weight: bold;
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+ text-align: center;
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+ height: 50px;
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+ line-height: 50px;
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+ margin-bottom: 20px;
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+ }
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+
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+ .img-content img {
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+ width: 100%;
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+ }
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+
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+ .img-content img:nth-child(2),
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+ .img-content img:nth-child(3) {
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+ display: none;
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+ }
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+
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+ .content {
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+ display: flex;
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+ margin: 20px 0;
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+ }
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+
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+ .content article {
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+ width: 0;
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+ flex-grow: 3;
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+ background-color: red;
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+ margin-right: 20px;
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+ }
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+
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+ .content aside {
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+ width: 0;
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+ flex-grow: 2;
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+ background-color: blue;
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+ }
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+
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+ @media screen and (max-width: 960px) {
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+
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+ .img-content img:nth-child(1),
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+ .img-content img:nth-child(3) {
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+ display: none;
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+ }
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+
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+ .img-content img:nth-child(2) {
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+ display: block;
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+ }
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+ }
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+
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+ @media screen and (max-width: 480px) {
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+
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+ .img-content img:nth-child(1),
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+ .img-content img:nth-child(2) {
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+ display: none;
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+ }
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+
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+ .img-content img:nth-child(3) {
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+ display: block;
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+ }
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+ .content{
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+ display: block;
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+ }
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+ .content article{
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+ width: 100%;
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+ margin-bottom: 20px;
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+ }
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+ .content aside{
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+ width: 100%;
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+ }
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+ }
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+ </style>
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+</head>
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+
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+<body>
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+ <div class="container">
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+ <header>头部</header>
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+ <nav>导航</nav>
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+ <div class="img-content">
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+ <img src="./img/1.jpg" alt="980">
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+ <img src="./img/2.jpg" alt="960">
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+ <img src="./img/3.jpg" alt="480">
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+ </div>
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+ <div class="content">
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+ <article>IE8 及更早IE版本无法在这些元素中渲染CSS效果，以至于你不能使用 或者其他的HTML5 elements.IE8 及更早IE版本无法在这些元素中渲染CSS效果，以至于你不能使用
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+ 或者其他的HTML5 elements.</article>
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+ <aside>IE8 及更早IE版本无法在这些元素中渲染CSS效果，以至于你不能使用 或者其他的HTML5 elements.IE8 及更早IE版本无法在这些元素中渲染CSS效果，以至于你不能使用
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+ 或者其他的HTML5 elements.</aside>
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+ </div>
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+ <footer>底部</footer>
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+ </div>
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+</body>
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+
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+</html>
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