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HomeWeb Front-endHTML Tutorial[css] css3 中的新特性加强记忆_html/css_WEB-ITnose

css3被拆分成如下的小模块,选择器,盒模型,背景和边框,文字特效,2D/3D转换,动画,多列布局和用户界面

 

2D转换

 

使用transform:属性来为元素设置2D转换,兼容浏览器加前缀 –webkit-  -moz-

 

使用rotate()方法,让元素旋转一定的角度,参数:角度

例如:transform:rotate(30deg); deg是角度的单位

 

使用translate()方法,让元素位移,参数:x轴 ,y轴

例如:transform:translate(10px,10px);

 

使用scale()方法,改变元素的比例大小,参数:x轴比例,y轴比例

例如:transform:scale(2,2);

 

使用skew()方法,拉伸元素,参数:x轴角度,y轴角度

例如:transform:skew(20deg,20deg);

 

使用matrix()方法,多变换结合,参数:矩阵,我看不懂

 

3D转换

 

使用rotateX()和rotateY()方法,对元素进行旋转,浏览器很多都不支持,参数:角度

 

 

过渡效果

 

使用transition:属性为元素设置过渡动画效果,兼容浏览器加前缀 –webkit-  -moz-,必须是样式在被修改的时候才会生效,因此在:hover的时候修改元素的样式,可以看到效果

使用transition:属性,参数:css样式 持续时间

例如:transition:width 2s;

 

参数中使用逗号分隔多项改变,transition:样式 时间,样式2 时间2,。。。

 

动画

 

创建动画@keyframes规则,@keyframes 规则名称{}

内容里面,使用百分比来划分动画的进度,变化样式

0%{  一些样式  }

25%{  一些样式  }

50%{  一些样式  }

75%{         一些样式         }

100%{  一些样式  }

 

使用animation:属性设置动画规则,参数:规则名称,执行时间,速度曲线,延迟时间,播放次数,循环播放

例如: animation:bitch 2s ease 0s infinite;

 

@keyframes bitch{    0%{        opacity: 0;    }    50%{        opacity: 1;    }    100%{        opacity: 0;    }}#test{    width: 100px;    height: 100px;    background: red;    animation:bitch 2s ease 0s infinite;}

 

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