有四个属性：  static:静止relative：相对的fixed：固定的（广告等信息固定在网页的某个位置，不管你上下滑动位置不变）absolu：绝对的.box{display:inline-block;width: 100px;height: 100px;background: blue;color: rgb(71, 16, 16);}#two {position: fixed;top: 200px;left: 100px;background: red;}#one{position: absolute;top: 1000px;left: 10px;background: black;} #three{position: sticky;top: 200px;left: 80px;background: purple;}

　　

    
         
         
             
         
     
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