#raiz {
  position: relative;
  width:780px;
  margin: 0em auto;
  padding: 0px 0px;
  text-align: left;
  background-color: #f3f3eb;
} 

#cabecera {
  position: relative;
  background-repeat: no-repeat;
  height: 195px;
  background-image: url('../img2/cabecera.jpg');
} 

#centro {
  position: relative;
  background-image: url('../img2/fondo_centro.jpg');
  background-repeat: repeat-y;
} 

#principal {
  width:610px;
  padding: 20px 30px 20px 30px;
} 

#contenido {
  padding-left: 20px;
} 

#derecha {
  float: right;
  margin-left: 10px;
  width:150px;
} 

#pie { 
  position:relative;
  background-image: url('../img2/fondo_pie.jpg');
  background-repeat: no-repeat;;
  width: 100%;
  height: 140px;
  color: #666666;
  text-align: center;
  padding-top: 25px;
}