#content .nav_fc .g-wrap .columns a {
	color: rgb(99, 102, 107); line-height: 25px; font-weight: bold; margin-left: 30px; float: left; position: relative; padding:10px; background: #f2f2f2;
}
#content .nav_fc .g-wrap .columns a.on  {background: #e2e2e2;
}

#content .nav_fc .g-wrap .columns a span {
	border-radius: 4px; transition:width 300ms; left: 0px; width: 0px; height: 2px; bottom: 0px; position: absolute; background-color: rgb(246, 59, 46); -webkit-transition: width 300ms;
}
#content .nav_fc .g-wrap .columns a.on span { 
	width: 100%; 
}