.tag_cloud {
	display:block;
	border:0;
	padding:4px;
	text-align: justify;
}
.tag_cloud li {display: inline;}
.tag_cloud a {padding: 0 2px;}
/* ============== teach ============== */
.tag_cloud a.xst {font-size:10pt;color:#2D7DAF;}
.tag_cloud a.xst:hover {color:#000;}

.tag_cloud a.st {font-size:12pt;color:#2D7DAF;}
.tag_cloud a.st:hover {color:#000;}

.tag_cloud a.mt {font-size:14pt;color:#2D7DAF;}
.tag_cloud a.mt:hover {color:#000;}

.tag_cloud a.lt {font-size:16pt;color:#2D7DAF;}
.tag_cloud a.lt:hover {color:#000;}

.tag_cloud a.xlt {font-size:18pt;color:#2D7DAF;}
.tag_cloud a.xlt:hover {color:#000;}

/* ============== study ============== */
.tag_cloud a.xss {font-size:10pt;color:#00AF18;}
.tag_cloud a.xss:hover {color:#000;}

.tag_cloud a.ss {font-size:12pt;color:#00AF18;}
.tag_cloud a.ss:hover {color:#000;}

.tag_cloud a.ms {font-size:14pt;color:#00AF18;}
.tag_cloud a.ms:hover {color:#000;}

.tag_cloud a.ls {font-size:16pt;color:#00AF18;}
.tag_cloud a.ls:hover {color:#000;}

.tag_cloud a.xls {font-size:18pt;color:#00AF18;}
.tag_cloud a.xls:hover {color:#000;}