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- <!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">
- <title>栅格系统-类</title>
- <link rel="stylesheet" href="./bootstrap-3.4.1-dist/css/bootstrap.min.css">
- <style>
- div {
- height: 50px;
- background-color: pink;
- margin-bottom: 50px;
- }
- </style>
- </head>
- <body>
- <!-- 版心样式:自带左右各15px的padding -->
- <div class="container">1</div>
- <!-- row类作用就是抵消container类的15px的内边距, row有-15px的外边距 -->
- <div class="container">
- <div class="row">2</div>
- </div>
- <!-- 宽度100%:自带左右各15px的padding -->
- <div class="container-fluid">3</div>
- </body>
- </html>
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