查看“︁MediaWiki:Common.css”︁的源代码

.wikiEditor-ui-toolbar .group-format .tool {
	width: auto !important;
	padding: 0 8px !important;
	text-indent: 0 !important;
	background-image: none !important;
	font-size: 13px;
}
.wikiEditor-ui-toolbar .group-format .tool[rel="红"]   { color: #c0392b; }
.wikiEditor-ui-toolbar .group-format .tool[rel="绿"]   { color: #27866b; }
.wikiEditor-ui-toolbar .group-format .tool[rel="蓝"]   { color: #2c6fb3; }
.wikiEditor-ui-toolbar .group-format .tool[rel="橙"]   { color: #d35400; }
.wikiEditor-ui-toolbar .group-format .tool[rel="高亮"] { color: #b8860b; }