.w_cen{padding-left:10px;padding-right:10px}.header .head .logo{width:100%;padding:15px;top:0;transform:translateY(0);border-bottom:1px solid #ddd}.header .head .nav{padding-left:150px;margin-top:83px}.header .head .nav .dep1>li>a{font-size:16px;padding:0 20px;line-height:60px}.header .head .util_menu{padding-top:82px}.about_2_wrap .teacher_career{padding-left:8%}.tb_st_1 th{font-size:13px}.tb_st_1 td{font-size:12px}@media screen and (max-width:900px){.header .head .nav .dep1>li>a{font-size:15px;padding:0 15px}}