.tdiv{ width:970px; margin:0 auto 0 auto;}

#title{ font-weight:bold; font-size:55px;font-family:"微软雅黑"; text-decoration:none}
#title2{ font-size:51px}    
.at1{color:#ea2d2e;}
.at2{color:#1b58a8;}
.at3{color:#ee8130;}
.at4{color:#00a651;}
.at5{color:#a13228;}
.at6{color:#6ebe4b;}
.at7{color:#ed509d;}

.tarea{ width:970px; margin:10px auto 10px auto; font-size:30px;}

.tarea a{ font-size:30px; font-weight:bold}
#xian{color:#ee8130; font-weight:bold; font-size:18px}