#adminmenu #toplevel_page_capa-capa-options div.wp-menu-image {
background: transparent url('../img/capa.png') no-repeat scroll -1px -33px;
}
#adminmenu #toplevel_page_capa-capa-options:hover div.wp-menu-image,
#adminmenu #toplevel_page_capa-capa-options.wp-has-current-submenu div.wp-menu-image,
#adminmenu #toplevel_page_capa-capa-options.current div.wp-menu-image {
background: transparent url('../img/capa.png') no-repeat scroll -1px -1px;
}