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							- <!DOCTYPE html>
 
- <html lang="en">
 
-   <head>
 
-     <meta charset="UTF-8" />
 
-     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
 
-     <title>Document</title>
 
-     <style>
 
-       #part1 {
 
-         float: left;
 
-         /* display: inline-block; */
 
-         
 
-         width: 200px;
 
-         height: 200px;
 
-         margin-top: 10px;
 
-         background: red;
 
-       }
 
-       #part2 {
 
-         float: left;
 
-         /* display: inline-block; */
 
-         
 
-         width: 200px;
 
-         height: 200px;
 
-         margin-top: 10px;
 
-         background: yellow;
 
-       }
 
-       #part3 {
 
-         float: left;
 
-         /* display: inline-block; */
 
-         
 
-         width: 200px;
 
-         height: 200px;
 
-         margin-top: 10px;
 
-         background: blue;
 
-       }
 
-       #part4 {
 
-         float: left;
 
-         /* display: inline-block; */
 
-         
 
-         width: 200px;
 
-         height: 200px;
 
-         margin-top: 10px;
 
-         background: pink;
 
-       }
 
-       #part5 {
 
-         float: left;
 
-         /* display: inline-block; */
 
-         
 
-         width: 200px;
 
-         height: 200px;
 
-         margin-top: 10px;
 
-         background: purple;
 
-       }
 
-     </style>
 
-   </head>
 
-   <body>
 
-     <!-- 
 
-         想让元素在一行展示 
 
-         浮动:float
 
-         left right none
 
-         会使元素脱离文档流 不占位
 
-         问题:导致父元素高度塌陷
 
-     -->
 
-     <div class="box">
 
-       <div id="part1"></div>
 
-       <div id="part2"></div>
 
-       <div id="part3"></div>
 
-       <div id="part4"></div>
 
-       <div id="part5"></div>
 
-     </div>
 
-   </body>
 
- </html>
 
 
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