.Button1{display:inline-block;height:30px;width:30px;background-image:url(Button1/Button1.png);background-repeat:no-repeat;vertical-align:middle}.Button1.Add{background-position:0 0}.Button1.Edit{background-position:-90px 0}.Button1.Minus{background-position:-60px 0}.Button1.Delete{background-position:-30px 0}