.mw-ui-icon-mf-close-base20:before {
background-image: linear-gradient(transparent,transparent),url("data:image/svg+xml,<svg %3Csvg xmlns="http%22http://www.w3.org/2000/svg" %22 width="20" %2220%22 height="20" %2220%22 viewBox="0 %220 0 20 20"><title> %22%3E%3Ctitle%3E close <%3C/title><g %3E%3Cg fill="#fff"> <path %22%23fff%22%3E %3Cpath d="M4%22M4.34 2.93l12.73 12.73-1.41 1.41L2.93 4.35z"%22/> <path %3E %3Cpath d="M17%22M17.07 4.34L4.34 17.07l-1.41-1.41L15.66 2.93z"%22/> <%3E %3C/g><%3E%3C/svg>%3E");
}