.tablesort {
  display: inline-block;
  width: 16px;
  height: 16px;
  background-size: 100%;
}
.tablesort--asc {
  background-image: url(/core/themes/stable/css/system/components/../../../images/core/icons/787878/twistie-down.svg);
}
.tablesort--desc {
  background-image: url(/core/themes/stable/css/system/components/../../../images/core/icons/787878/twistie-up.svg);
}