#principal
 {
           width: 800px;
           background-color: #FFFFFF;
           margin-left: auto;
           margin-right: auto;
           margin-top: 0px;
           margin-bottom: 0px;
           padding: 0px;
		   border: 0px;
}

#encabezado1
{
           width: 320px;
           height: 276px;
		   padding:0px;
           border: 0px;
           float: left;
}

#encabezado2
{
           width: 262px;
		   height: 276px;
		   padding:0px;
           border: 0px;
           float: left;
}

#encabezado3
{
           width: 218px;
           height: 276px;
           padding:0;
		   border: 0px;
           float: left;
}

#barra
 {
           width: 800px;
           height: 37px;
           background-color : #333333;
           float: left;
		   padding:0px;
		   border: 0px;
}

#contenido
{
           max-width: 800px;
           min-height: 550px;
           margin-top: 0px;
           margin-bottom: 0px;
           border: 0px;
           float: left;
}

.columna
{
           width: 200px;
		   padding:0px;
		   border: 0px;
		   float: left;
}

#nav
{
	padding:0px;
	margin-top: 0px;
}

#nav li
{
    display:inline;
}

#nav li a
{  
   font-family:Arial;
   font-size:12px;
   text-decoration: none;
   float:left;
   padding:10px;
   background-color: #333333;
   color:#ffffff;
   border-bottom:1px;
   border-bottom-color:#000000;
   border-bottom-style:solid;
}

#nav li a:hover
{
   background-color: #0066CC;
   padding-bottom:12px;
   border-bottom:2px;
   border-bottom-color:#000000;
   border-bottom-style:solid;
   margin:-1px;
}

.titulo_grande
 {
           font-size: 16px;
		   font-style: italic; 
}

.titulo1, .titulo_grande
 {
           color: #0066CC;
}

.texto
 {
           min-width: 710px;
           text-align: justify;
}

.titulo1, .texto
{
           font-size: 12px;
           font-family: Arial, Courrier-New, Helvetica;
}

.negrita
{
          font-weight: bold;
}

img.derecha
{
		   float: right;
}


img.centro
{
           display: block;
		   margin-left: auto;
		   margin-right: auto;
}