Minor issue with sort handle about sortable HOT 1 OPEN

table[data-sortable] {
    border-collapse: collapse;
    border-spacing: 0;
}
table[data-sortable] th:not([data-sortable="false"]) {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -o-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    -webkit-touch-callout: none;
    cursor: pointer;
}
table[data-sortable] th:after {
    visibility: hidden;
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: .3em;
    vertical-align: middle;
    content: "";
    border-top: .3em solid;
    border-right: .3em solid transparent;
    border-left: .3em solid transparent;
}
table[data-sortable] th[data-sorted="true"]:after {
    visibility: visible;
}
table[data-sortable] th[data-sorted-direction="ascending"]:after {
    border-top: 0;
    border-bottom: .3em solid;
}