1. .percent_trend {
    2.     display: inline-block;
    3.   width: 0;
    4.   height: 0;
    5.   margin-right: 4px;
    6.   border-right: 3px solid transparent;
    7.   border-left: 3px solid transparent;
    9.   &.up {
    10.       border-bottom: 9px solid currentColor;
    11.   }
    13.   &.down {
    14.       border-top: 9px solid currentColor;
    15.   }
    16. }