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The deformation function in css3 (also for elements) and the element achieve animation effects by changing its own attributes_html/css_WEB-ITnose

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2016-06-24 11:46:461451browse

 

 1  /*对元素进行改变(移动、变形、伸缩、扭曲)*/ 2  .wrapper{ 3    margin:100px 100px auto auto; 4    width:300px; 5    height:200px; 6    border:2px dotted blue; 7 } 8 .wrapper div{ 9     width:300px;10     height:200px;11     background:red;12     color:blue;/*设置文本颜色  如果有的话*/13     text-align:center;/* 设置文本位置  如果子元素有的话 */14     line-height:200px;/* 设置行间距 */15     border-radius:30px;/* 设置角半径 */16     17     /*属性*/18     transform-origin:top right;/*设置元素的中心点 top center right left bottom  合理的情况下任意两两组合 例如 top right  表示右上角*/19     20     /*函数*/21     transform:rotate(20deg);/* 旋转20°,整数表示顺时针,负数表示逆时针 */22     transform:skew(15deg,20deg);/*x轴扭曲15°,y轴扭曲20°*/23     transform:scale(1.5,0.5);/*根据中心点x方向放大1.5倍 y轴缩小0.5倍*/24     transform:translate(-100px,50px);/*沿x轴负方向移动100px,沿y轴正方向移动   25     50px*/26    }27  span{28        display:block;/* 转换为块状元素 */29         }

 

 

 
   通过鼠标的点击、获得焦点,被点击或对元素的任何改变中触发,并平滑的以动画的效果改变css的属性值对元素用到的四个属性为:

  1. transition- property: width;//Indicates changes to that property
  2. transition-duration: 5s; //Indicates the duration of the animation
  3. transition-timing-function: ease;
  4. transition-delay: 0.5s;//Indicates animation delay time
例子: 1    .wrapper{ 2    margin:auto; 3    width:300px; 4    height:200px; 5    border:2px dotted blue; 6  7    transition-property:all;/*表示hover事件中的所有属性,改成width的话就只对width有            8                                            效,而height会瞬间变为50px不具有过度效果*/ 9    transition-duration:5s;/*表示动画的持续时间*/10    transition-timing-function:ease-in;/*表示动画的播放方式由快到慢*/11    transition-delay:0.15s;/*表示动画的延时时间*/12 }13 .wrapper:hover14 {15   width:500px;16   height:50px;17 }

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