toolbarbutton[type="menu-button"][open="true"] > toolbarbutton.toolbarbutton-menubutton-button {
padding-top: 2px !important;
padding-bottom: 0px !important;
toolbarbutton[type="menu-button"][open="true"] > toolbarbutton.toolbarbutton-menubutton-button {
padding-top: 2px !important;
padding-bottom: 0px !important;