.gl{//大于号样式
width: 12px;
height: 12px;
position: absolute;
border-left: 1px solid #999;
border-bottom: 1px solid #999;
-webkit-transform: translate(0,-50%) rotate(-135deg);
transform: translate(0,-50%) rotate(-135deg);
}
.gl{//大于号样式
width: 12px;
height: 12px;
position: absolute;
border-left: 1px solid #999;
border-bottom: 1px solid #999;
-webkit-transform: translate(0,-50%) rotate(-135deg);
transform: translate(0,-50%) rotate(-135deg);
}