The rating control you using will be using span with height & Width i think as span element is an inline element in HTML. You can't specify a width
and height
for an inline element.So
Add display: inline-block;
.Star {
background-image: url("/Images/rating/Star.gif");
height: 17px;
width: 17px;
display: inline-block; /* or display block */
}
I hope this will work.
good luck!