#cuatro {
HEIGHT: 163px;
}
#the-industry {
TOP: 168px;
}
#on-a {
TOP: 194px;
}
#advantages-inconveniences {
TOP: 220px;
}
#faq  {
TOP: 246px;
}
#image-gallery {
TOP: 272px;
}
#department-a {
TOP: 481px;
BACKGROUND: url('department-merc-a.gif') no-repeat; 
}
#department-b {
TOP: 507px;
BACKGROUND: url('department-merc-b.gif') no-repeat; 
}
#department-c {
TOP: 533px;
BACKGROUND: url('department-merc-c.gif') no-repeat; 
}
#department-d {
TOP: 559px;
BACKGROUND: url('department-merc-d.gif') no-repeat; 
}