.menu a {
  display:block;
  border:none;
  background-position:left top;
  background-repeat:no-repeat;
  width:194px;
  height:43px;
}
.menu a:hover { background-position: 0 -43px; text-decoration: none; }
.menu .alt { display:none; }

/* Menu Canales */

.menu a#qs { background-image: url(btnqs.jpg) }
.menu a#pct { background-image: url(btnpct.jpg) }
.menu a#ns { background-image: url(btnns.jpg) }
.menu a#cr { background-image: url(btncer.jpg) }
.menu a#pi { background-image: url(btnpi.jpg) }

/* Menu DirPlant, ¿QGC? */

.menu a#dirp { background-image: url(dirplant.jpg) }
.menu a#qsgc { background-image: url(qsgencona.jpg) }
.menu a#ce { background-image: url(cicloesc.jpg) }

/* Menu Enlaces */

.menu a#ei { background-image: url(btnenint.jpg) }
.menu a#conv { background-image: url(cursostall.jpg) }
.menu a#apdid { background-image: url(apdidac.jpg) }

/* Menu Banners */

.menu a#unv { background-image: url(universia.jpg) }
.menu a#cm { background-image: url(cinemin.jpg) }
.menu a#sae { background-image: url(sae.jpg) }
.menu a#utilizar { background-image: url(utilizar.jpg) }
.menu a#vidc { background-image: url(videocona.jpg) }
.menu a#bola { background-image: url(bolalumn.jpg) }
.menu a#horcon { background-image: url(hor_con.jpg) }

/* CLASE PARA EL MENU DE LADO DERECHO */

.menumd a {
  display:block;
  border:none;
  background-position:left top;
  background-repeat:no-repeat;
  width:227px;
  height:41px;
}
.menumd a:hover { background-position: 0 -41px; text-decoration: none; }
.menumd .alt { display:none; }

/* Menu Enlaces Federales */

.menumd a#pot { background-image: url(bnrtransp.jpg) }
.menumd a#oic { background-image: url(bnroic.jpg) }
.menumd a#trc { background-image: url(bnrrendcuentas.jpg) }
.menumd a#bqsd { background-image: url(bqsug.jpg) }
.menumd a#bol { background-image: url(btnbltn.jpg) }

/* Menu DerInferior */

.menumd a#proginst { background-image: url(bnrproginst.jpg) }
.menumd a#ayuda { background-image: url(bnrayuda.jpg) }
.menumd a#calnp { background-image: url(btncalifportal.jpg) }