body,div{margin:0;padding:0;background:teal;}

.flip_wrap{

display: inline-block;

width:300px;

height:220px;

margin:50px;

perspective:800px;/*perspective属性定义3D元素距视图的距离,以像素计。该属性允许您改变 3D 元素查看 3D 元素的视图。*/

-webkit-perspective:800px;

-moz-perspective:800px;

-ms-perspective:800px;

-o-perspective:800px;

box-sizing:border-box;

}

.flip{

width:100%;

height:100%;

backface-visibility:hidden;/*背对屏幕时隐藏*/

-webkit-backface-visibility:hidden;

-moz-backface-visibility:hidden;

-ms-backface-visibility:hidden;

-o-backface-visibility:hidden;

transition: all 1s ease; /*为翻牌添加过渡效果*/

-webkit-transition: all 1s ease;

-moz-transition: all 1s ease;

-ms-transition: all 1s ease;

-o-transition: all 1s ease;

transform-style: preserve-3d; /*子元素将保留其 3D 位置。*/

}

.side{

width:100%;

height:100%;

position: absolute;/*让背面和正面重叠*/

left: 0;

top: 0;

font-size: 16px;

color:#fff;

text-align: center;

}

.front{

border: 1px solid #333;

font-size: 18px;

background:rgba(255,192,203,0.4);

}

.front p{

dispaly:block;

margin:80px auto;

}

.back{

backface-visibility:hidden;/*背对屏幕时隐藏*/

-webkit-backface-visibility:hidden;

-moz-backface-visibility:hidden;

-ms-backface-visibility:hidden;

-o-backface-visibility:hidden;

-webkit-transform:rotateY(180deg);

-moz-transform:rotateY(180deg);

-ms-transform:rotateY(180deg);

-o-transform:rotateY(180deg);

background: rgba(227, 222, 244, 0.14);

padding: 0 36px;

box-sizing:border-box;

}

.back span{

display: block;

margin: 40px 0px;

font-size: 18px;

color: #00c1DE

}

.back p{

display: block;

margin: 4px 0;

}

.flip_wrap:hover .flip{

transform:rotateY(180deg);(180);

-webkit-transform:rotateY(180deg);

-moz-transform:rotateY(180deg);

-ms-transform:rotateY(180deg);

-o-transform:rotateY(180deg);

}