SCSS : notification number

gistfile1

span {
	$size: 25px;
	$color:$green;
	float:right;
	font-size:$size/1.8;
	line-height:$size;
	font-weight:bold;
	color:lighten($color, 60);
	text-align:center;
	display:inline-block;
	background:$color;
	border:solid 2px lighten($color, 60);
	padding:0 7px;
	height:$size;
	@include box-shadow(0 0 4px rgba(0, 0, 0, .3));
	@include border-radius($size);
}