#mm_nav {
	padding: 0;
	margin: 0;
	display:block;
	list-style:none;
	text-align:left;
	z-index: 600;
}
#mm_nav .mm_sub_nav {
	background: url(/wp-content/themes/pixel/images/bg-trans.png) repeat;
	border-style:solid;
	border-width:0 1px 1px 1px;
  /* optional rounded corners for browsers that support it */
  -moz-border-radius: 6px;
  -khtml-border-radius: 6px;
  -webkit-border-radius: 6px;
  border-radius: 6px;
}
#mm_nav li .mm_sub_nav a:hover {
	background: url(/wp-content/themes/pixel/images/bg-trans.png) repeat;
}
#mm_nav li:hover .mm_sub_nav li .mm_sub_nav{
	border-width:1px;
}