.tu1,.tu2,.tu3,.tu4,.tu5,.tu6,.tu7,.tu8,.tu9,.tu10,tu58{ clear:both; height:176px; width:176px; display:block; background: url(images/dong.gif) center top no-repeat;}

.tu1 a{ height:176px; width:176px; display:block; background:url(./01.jpg) center top no-repeat;}
.tu1 a:hover{ height:176px; width:176px; display:block; background:url(./1.jpg) center top no-repeat;}
.tu2 a{ height:176px; width:176px; display:block; background:url(./02.jpg) center top no-repeat;}
.tu2 a:hover{ height:176px; width:176px; display:block; background:url(./2.jpg) center top no-repeat;}
.tu3 a{ height:176px; width:176px; display:block; background:url(./03.jpg) center top no-repeat;}
.tu3 a:hover{ height:176px; width:176px; display:block; background:url(./3.jpg) center top no-repeat;}
.tu4 a{ height:176px; width:176px; display:block; background:url(./04.jpg) center top no-repeat;}
.tu4 a:hover{ height:176px; width:176px; display:block; background:url(./4.jpg) center top no-repeat;}
.tu5 a{ height:176px; width:176px; display:block; background:url(./05.jpg) center top no-repeat;}
.tu5 a:hover{ height:176px; width:176px; display:block; background:url(./5.jpg) center top no-repeat;}
.tu6 a{ height:176px; width:176px; display:block; background:url(./06.jpg) center top no-repeat;}
.tu6 a:hover{ height:176px; width:176px; display:block; background:url(./6.jpg) center top no-repeat;}
.tu7 a{ height:176px; width:176px; display:block; background:url(./07.jpg) center top no-repeat;}
.tu7 a:hover{ height:176px; width:176px; display:block; background:url(./7.jpg) center top no-repeat;}
.tu8 a{ height:176px; width:176px; display:block; background:url(./08.jpg) center top no-repeat;}
.tu8 a:hover{ height:176px; width:176px; display:block; background:url(./8.jpg) center top no-repeat;}
.tu9 a{ height:176px; width:176px; display:block; background:url(./09.jpg) center top no-repeat;}
.tu9 a:hover{ height:176px; width:176px; display:block; background:url(./9.jpg) center top no-repeat;}
.tu10 a{ height:176px; width:176px; display:block; background:url(./010.jpg) center top no-repeat;}
.tu10 a:hover{ height:176px; width:176px; display:block; background:url(./10.jpg) center top no-repeat;}