nav ul li span{position:absolute; z-index:1; right:0; top:0px; height:41px;  width:30px; text-align:center; cursor:pointer; display:none; background:url(../images/plus-icon.png) no-repeat center center #A9A3A3;}
@media only screen and (max-width:767px){
nav ul li span{display:block;}
	}
@media only screen and (max-width:479px){	
	nav ul li span{height:39px;}
}