.nav-drop .catalog-drop-bt>span,
.nav-drop .services-drop-bt>span {
    background-image: url(/local/templates/main/images/icon/down-arrow_white_18.png);
    background-position: 94% -4px;
    background-repeat: no-repeat;
    padding: 0 37px 0 0 !important;
}

.nav-drop .catalog-drop-bt.active>span,
.nav-drop .services-drop-bt.active>span {
    background-image: url(/local/templates/main/images/icon/up-arrow_white_18.png);
    background-position: 94% -4px;
    background-repeat: no-repeat;
}