body { 
font-family:Verdana, Arial, Helvetica, sans-serif; 
font-size:12px; 
color: #000000; 
}
#cabecera { 
background-image: url(nav_bg5.png); 
/*background-image:url(institucion.bmp); */
background-repeat:repeat-x;
height: auto; 
width: auto;
margin:auto; 
padding-left: inherit;
}