.btn-icon-undo {
    width: 16px;
    height: 16px;
    -webkit-mask-image: url("images/undo.svg");
    mask-image: url("images/undo.svg");
    color: #fff;
    background-color: currentColor
}

.btn-icon-redo {
    width: 16px;
    height: 16px;
    -webkit-mask-image: url("images/redo.svg");
    mask-image: url("images/redo.svg");
    background-color: currentColor
}