/* Elementos HTML */
body {
	background:#FFF url(img/fondobody.gif) repeat-x;
	font:12px Verdana, Arial, Helvetica, sans-serif;
	color:#333;
	margin : 0;
	font : 80%/160% Arial, Helvetica, sans-serif;
	width : 100%;
}
p {
	color : #000;
	font-family : Verdana, Geneva, sans-serif;
	margin-left:10px;
}
h1 {
	text-indent : -9999px;
	color: #CCC;
}
h3 {
	color:#666;
	font-size : 16px;
	margin-left:10px;
	text-align : left;
	color:#666;
	text-transform: uppercase;
}
h2 {
	font-size : 1, 5em;
	color:#000;
	line-height: 40px;
	margin-top: 0pt;
	margin-right: 0pt;
	margin-bottom: 0pt;
	margin-left: 0pt;
	padding-top: 0pt;
	padding-right: 0pt;
	padding-bottom: 0pt;
	padding-left: 10px;
}
h4 {
	color:#666;
	font-family : "Trebuchet MS", Arial, Helvetica, sans-serif;
	margin : 5px;
	text-align : left;
	margin-left:10px;
}
/* Identificadores */
#contenedor {
	width : 940px;
	margin : 0 auto;
	background :#FFF;
}
#contenido {
	margin : 0 auto;
	width : 940px;
	height : auto;
	overflow : hidden;
	background : #fff;
}
/*CLASES PARTICULARES*/
#encabezado {
	background:#000 url(img/cabecera_ps.jpg) no-repeat;
	width : 940px;
	height : 171px;
}
.cont_clases {
	width : 640px;
	height : auto;
	float:left;
	background-color: #ffffff;
	background-image: url(img/box-bgr.gif);
	background-repeat: repeat-x;
	background-position: center top;
	height: 1%;
	border-right:#CCC 1px solid;
	border-left:#CCC 1px solid;
	margin-top:5px;
}
.cont_clases p {
	padding-right:3px;
}
.caja_derecha {
	width : 280px;
	float:left;
	height: 1%;
	margin-top:5px;
	margin-left:8px;
}
strong {
	font-weight : bold;
}
a {
	text-decoration:none;
}
#pie {
	width : 940px;
	margin : 0 auto;
	height : auto;
	background:#FFF url(../dw/img/button1a.gif) repeat-x;
	border-top : 3px solid #fff;
	clear:both;
}
#pie p {
	color:#FFF;
	text-align:center;
}
/* lists */
ul.menu, .menu ul {
	background: #57A0D3;
	border-top: 1px solid #3A3A3A;
	margin: 0;
	padding: 0;
}
.menu li {
	border-bottom: 1px solid #3A3A3A;
	list-style: none;
}
.menu a {
	background: url(img/block.jpg) repeat-x left top;
	color: #000;
	display: block;
	padding: 0.6em 2% 0.6em 5%;
	width: 92%;
	text-decoration:none;
}
.menu a:hover {
	background:#000;
	color: #FFF;
}
<!--
///////////////////////Sub menu///////////////////////
-->
ul.submenu, .submenu ul {
border-top: 1px solid #3A3A3A;
margin: 0;
padding: 0;
}
.submenu li {
	border-bottom: 1px solid #3A3A3A;
	list-style: none;
}
.submenu a {
	color: #000;
	display: block;
	padding: 0.6em 2% 0.6em 5%;
	width: 92%;
	text-decoration:none;
}
.submenu a:hover {
	color: #FFF;
}
ul.submenu, .submenu ul {
	margin: 0;
	padding: 0;
}
.submenu li {
	list-style: none;
}
.submenu a {
	color: #000;
	display: block;
	padding: 0.6em 2% 0.6em 5%;
	width: 92%;
	text-decoration:none;
}
.submenu a:hover {
	color: #941b13;
}
<!--
///////////////titulo menu////////////
-->
.titulomenu ul {
margin: 0;
padding: 0;
}
.titulomenu li {
	background: #000;
	color: #FFF;
	display: block;
	padding: 0.6em 2% 0.6em 5%;
	width: 92%;
	text-decoration:none;
	list-style: none;
}
.titulomenu li a {
	color: #FFF;
	display: block;
	padding: 0.6em 2% 0.6em 5%;
	width: 92%;
	text-decoration:none;
	list-style: none;
}
<!--
///////////////titulo menu////////////
-->
.titulomenu2 ul {
margin: 0;
padding: 0;
}
.titulomenu2 li {
	background:#941b13;
	color: #FFF;
	display: block;
	padding: 0.6em 2% 0.6em 5%;
	width: 92%;
	text-decoration:none;
	list-style: none;
}
#cont_uno #boton_cont_uno, #registro #boton_registro, #cont_dos #boton_cont_dos, #tipografia #boton_tipo {
	background:#000;
	color:#FFF;
}
#registro img {
	margin-left:10px;
}
#registro a {
	text-decoration:none;
}
img {
	border: none;
}
/*clases y pseudoo clases*/
.gris {
	color:#666;
}
/*pie*/
#pie {
	width:100%;
	height:114px;
	padding:23px 0 0 0;
	background: url(img/footer_bg.gif) 0 0 repeat-x #3B3B3B;
	color:#FEF8F0;
	text-decoration:none;
}
#pie ul {
	width : 640px;
	height:30px;
	margin-left:200px;
}
#pie ul li {
	float:left;
	font-family:Verdana, Geneva, sans-serif;
	color:#FFF;
	text-decoration:none;
	margin-left:15px;
	list-style:none;
}
#pie ul li a {
	font-family:Verdana, Geneva, sans-serif;
	color:#999;
	text-decoration:none;
}
#pie ul li a:hover {
	color:#b9ce33;
}
#pie a.link:hover {
	color:#b9ce33;
}
#contenedor #contenido .cont_clases p a {
	font-size: 15px;
	color: #666;
	text-decoration: none;
	/*display: block;*/
}
#contenedor #contenido .cont_clases p a:hover {
	font-size: 15px;
	color: #000;
	text-decoration: none;
	/*display: block;*/
}
.volver {
	font-weight:bold;
}
.volver a {
	color:#000;
	text-decoration:none;
}