#zotero-tb-search-menu-button { list-style-image: none; /* Dropmarker added automatically on Linux */ -moz-appearance: toolbarbutton-dropdown !important; width: 12px; height: 12px; } #zotero-tb-search-dropmarker { left: 44px; } #zotero-tb-search .textbox-search-icon { visibility: hidden; }