body{padding:15px 17px 60px;background:#fff;color:#000;font-size:12px}
.teach{padding-bottom:10px}
.teach .head{background:#f4f4f4}
.teach .bold{font-weight:700}
.teach p{font-size:14px;line-height:24px;margin-top:5px}
.teach p a{color:#00f}
.teach p img{width:80%;display:block;margin:0 auto}