BODY { color: black; background: white }
			.inicial { font-familiy: serif; font-size: 30pt; color: red }
			P { position: relative; left: 0.5cm; }
			.resaltado { color: red; 
                   font-weight: 900;
                   font-size: larger;
                 }
			.navbar { font-family: helvetica, sans-serif;
			          font-size: 10 pt; }
			DIV.navbar { position: absolute;
			             top: 15%;
			             align: center;
			             visibility: hidden;
                   border: solid white;
			             border-width: 1px;
                   background-color: #dfdfdf;}
			DIV.navbart { position: relative;
			             align: center;
			             visibility: visible;
                   border: solid white;
			             border-width: 1px;
                   background-color: #dfdfdf;}
			A.navbar:link    { color: blue }
			A.navbar:visited { color: blue }
			A.navbar:hover   { color: red }
			A.navbar:active  { color: red; background: yellow; }
			.contenedor { position: absolute;
 			              top: 20%;
 			              bottom: 0.25cm;
			              text-align: justify;
			              visibility: hidden; }
			#nb0 { top: 12%;
			       visibility: visible }