.rollover a {
    
    display:block;
    width: 287px;
    height:157px;
    background: url("images/fleet-button.jpg") 0 0 no-repeat;
    text-decoration: none;
}
.rollover a:hover { 
    background-position: 0 -157px;

}
.rollover a:active {
background-position: 0 -157px;

}


.GroupButton a {
    float:left;
    display:block;
    width: 260px;
    height:129px;
    background-color:black;
    background: url("images/largegroup-button.jpg") 0 0 no-repeat;
    text-decoration: none;
}
.GroupButton a:hover { 
    background-position: 0 -129px;

}
.GroupButton a:active {
background-position: 0 -129px;

}

.smallButton a {
    float:left;
    display:block;
    width: 260px;
    height:129px;
    background-color:black;
    background: url("images/smallgroup-button.jpg") 0 0 no-repeat;
    text-decoration: none;
}
.smallButton a:hover { 
    background-position: 0 -129px;

}
.smallButton a:active {
background-position: 0 -129px;

}