.sortable-table .sorting-header{
    user-select: none;
}
.sortable-table .sorting-header > *:not([data-sort-type=none]){
    cursor: pointer;
}
.sortable-table .sorting-header .sort-asc:after,
.sortable-table .sorting-header .sort-desc:after{
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    background-image: url('data:image/svg+xml, <svg xmlns="http://www.w3.org/2000/svg" fill="%23aaaaaa" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg>');
    background-position: center;
    background-repeat: no-repeat;
    vertical-align: middle;
}
.sortable-table .sorting-header .sort-desc:after{
    transform: rotate(180deg);
}