[data-action-icon]::before {
    content:"";
    display:inline-block;
    width:18px;
    height:18px;
    flex:0 0 18px;
    margin-right:7px;
    vertical-align:-4px;
    background-color:currentColor;
    mask:var(--action-icon) center / contain no-repeat;
    -webkit-mask:var(--action-icon) center / contain no-repeat;
}