/* From https://listjs.com/examples/table/ */
.sort:after {
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-bottom: 5px solid transparent;
    content: "";
    position: relative;
    top: -10px;
    right: -5px;
}

.sort.asc:after {
    /* background-color: #495057; */
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid #495057;
    content: "";
    position: relative;
    top: 4px;
    right: -5px;
}

.sort.desc:after {
    /* background-color: #495057; */
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-bottom: 5px solid #495057;
    content: "";
    position: relative;
    top: -4px;
    right: -5px;
}