css常用效果

展开扩大：平台（通用）

.antzone:before {
position: absolute;
content: '';
width: 10px;
height: 5px;
top: 5px;
left: 50%;
background-color: #f00;
transition: all 0.35s ease-in-out;
transform: scale(0);
}
.antzone:hover:before {
transform: scaleX(40);
}