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@@ -0,0 +1,54 @@
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+<!DOCTYPE html>
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+<html lang="en">
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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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+ #box {
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+ width: 800px;
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+ height: 800px;
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+ margin: 0 auto;
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+ border: 3px solid #000;
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+ }
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+ #part1 {
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+ width: 200px;
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+ height: 200px;
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+ /* display: inline-block; */
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+ float: left;
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+ background-color: #f00;
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+ }
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+ #part2 {
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+ width: 230px;
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+ height: 230px;
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+ /* margin-top: 10px; */
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+ /* display: inline-block; */
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+ float: left;
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+ background-color: #ff0;
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+ }
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+ #part3 {
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+ width: 200px;
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+ height: 200px;
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+ /* float: left; */
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+ background-color: #00f;
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+ }
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+ /*
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+ 当想让元素在一行展示时
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+ 使用浮动
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+ float：left/right/none
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+ 使元素脱离文档流 不占位
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+
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+ 排版：
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+ 文档排版
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+ 浮动
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+ */
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+ </style>
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+</head>
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+<body>
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+ <div id="box">
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+ <div id="part1"></div>
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+ <div id="part2"></div>
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+ <div id="part3"></div>
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+ </div>
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+</body>
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+</html>
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