table 1PX 边框

.role_mod_tab{border:1px solid #E8E8E8; width:100%; color:#181818; font-size:14px; cellspacing:0; cellpadding:0; border-collapse:collapse;}
.role_mod_tab td,.role_mod_tab th{height:46px; line-height:46px; text-align:center; border-top:1px solid #E8E8E8; border-right:1px solid #E8E8E8;}