.mainCategory ul { width:100%; font-size:0.9em; line-height:0; border-top:0px solid #818181; border-bottom:0px solid #818181; background:#212121;text-align:center;margin-top:10px}
.mainCategory ul:after { content:""; display:block; clear:both; }
.mainCategory li { float:left; width:25%;background:#212121 }
.mainCategory li a { display:block; overflow:hidden; height:36px; line-height:36px; padding:0 7px; font-size:1.0em; color:#f7f7f7; font-weight:400;
     border-bottom:1px solid #515151; border-right:1px solid #515151; -moz-box-sizing:border-box; -webkit-box-sizing:border-box; box-sizing:border-box; }
.mainCategory li:nth-child(4) a,
.mainCategory li:nth-child(4) a,
.mainCategory li:nth-child(12) a { border-right:0; }
.mainCategory li:nth-child(5) a, 
.mainCategory li:nth-child(6) a
.mainCategory li:nth-child(7) a,
.mainCategory li:nth-child(8) a { border-bottom:0; }