H5响应式网页翻牌小游戏代码.zip

body{  margin:0;  padding:0; } .tile{  display:block;  float:left;  border-radius:5%;  overflow:hidden;  position:relative;  cursor:pointer; } .tile:nth-of-type(4n1){  clear:left; } .tile:after{  content:'';  display:block;  width:100%;  heigh