.item .trend{width:10px;height:10px;margin-left:5px;display:flex;align-items:center;justify-content:center}.item .trend .up{width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-bottom:7px solid black}.item .trend .down{width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:7px solid black}.item .trend .constant{width:8px;height:3px;background:#000}