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水平与垂直对齐
零龙
Original
635 people have browsed it

水平与垂直对齐

实例代码：

  2. <!DOCTYPE html>
  3. <html lang="en">
  4. <head>
  5.     <meta charset="UTF-8">
  6.     <meta name="viewport" content="width=device-width, initial-scale=1.0">
  7.     <title>元素的水平与垂直对齐</title>
  8. </head>
  9. <style>
  10.     *{
  11.         margin: 0;
  12.         padding: 0;
  13.         box-sizing: border-box;
  14.     }
  15.   .box{
  16.        width: 300px;
  17.        height: 300px;
  18.        margin: 5px;      
  19.        border: 1px solid #000;
  20.        position: relative;
  21.        float: left;
  22.    }
  23.   .item{         
  24.        width: 100px;
  25.        height: 100px;       
  26.        border: 1px solid #000;
  27.        position: absolute;
  28.        top: 0;    
  29.        left: 0;
  30.        right: 0;
  31.        bottom: 0;
  32.        margin:auto;
  33.   }
  34.   .item_1{
  35.       text-align: center;
  36.   }
  37.     .box1{
  38.        width: 300px;
  39.        height: 300px;
  40.        margin: 5px;            
  41.        border: 1px solid #000;
  42.        float: left;
  43.    }
  44.   .box1 .item1{
  45.       width: 100px;
  46.       height: 100px;      
  47.       border: 1px solid #000;
  48.       text-align: center;
  49.       margin: 0 auto;
  51.   }
  52.   .box2{
  53.        width: 300px;
  54.        height: 300px;
  55.        margin: 5px;            
  56.        border: 1px solid #000;
  57.        float: left;
  58.        position: relative;
  60.   }
  61.   .box2 .item2{
  62.       width: 100px;
  63.       height: 100px;      
  64.       border: 1px solid #000;
  65.       text-align: center;        
  66.       position: absolute;  
  67.       top: 100PX;
  68.   }
  69. </style>
  70. <body>
  71.    <div class="box">
  72.        <div class="item"></div>      
  73.        <div class="item_1">水平垂直居中</div>      
  74.    </div>
  75.    <div class="box1">
  76.        <div class="item1"></div>       
  77.        <div class="item1_1">水平居中</div>     
  78.    </div>
  79.    <div class="box2">
  80.        <div class="item2"></div>
  81.        <div class="item2_1">垂直居中</div>
  82.    </div>
  83. </body>
  84. </html>
  • 实例效果

Correcting teacher：天蓬老师天蓬老师

Correction status：qualified

Teacher's comments：这个作业很袖珍呀, 我布置过这么简单的作业吗?下次记得写完再提交
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