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@@ -0,0 +1,38 @@
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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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+ /*
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+ 将元素转成行内元素 display:inline;
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+ 将元素转成块级元素 display:block;
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+ 将元素转成行内块级元素 display:inline-block;
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+ */
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+ .first {
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+ width: 300px;
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+ height: 300px;
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+ display: inline-block;
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+ background-color: aqua;
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+ }
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+ .second {
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+ width: 200px;
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+ height: 200px;
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+ display: inline-block;
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+ background-color: #f00;
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+ }
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+ span {
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+ width: 100px;
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+ height: 100px;
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+ display: block;
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+ border: 1px solid #f00;
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+ }
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+ </style>
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+</head>
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+<body>
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+ <div class="first">111</div>
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+ <div class="second">222</div>
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+ <span>333</span><span>444</span>
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+</body>
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+</html>
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