.content_bottom_icons{
background: no-repeat; 
}

#content_bottom_newsletter{
background-image: url(images/icon_content_bottom_newsletter.png);
width:240px;
height:130px;
}
#content_bottom_newsletter:hover{
background-image: url(images/icon_content_bottom_newsletter_on.png);
}

#content_bottom_awards{
background-image: url(images/icon_content_bottom_awards.png);
width:224px;
height:148px;
}
#content_bottom_awards:hover{
background-image: url(images/icon_content_bottom_awards_on.png);
}

#content_bottom_yellow_club{
background-image: url(images/icon_content_bottom_yellow_club.png);
width:223px;
height:129px;
}
#content_bottom_yellow_club:hover{
background-image: url(images/icon_content_bottom_yellow_club_on.png);
}