.Button1
{
    display:inline-block;
    height: 30px;
    width: 30px;
    background-image: url('/_MasterPage/_Css/Grobal/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;
}