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[grafo0]

Aqui pude agregar el estilo, sacandole los link de background:

#@charset "utf-8";

A:link {text-decoration:none;color:#000;}A:visited {text-decoration:none;color:#000;}A:active {text-decoration:underline;color:#000;}A:hover {text-decoration:none;color:#000;font-weight:bold}

body {font: 100% Verdana, Arial, Helvetica, sans-serif;margin: 0 0 0 0;padding: 0;text-align: center;color: #000;background-color: #fff;}

.nova #contenedor {width: 1000px;background: #fff;text-align: left;position: static;height: 100%;margin: 0 auto 0 auto;}

/* tamaños y color de bloques */
.nova #m1, .nova #m4, .nova #m5, .nova #m8, .nova #m9, .nova #m12, .nova #m13{
width: 90px;height: 90px;font-family: Arial;font-size: 14px;line-height: 25px;position:relative;display:block;background-color:#000;}

.nova #m2, .nova #m3, .nova #m6, .nova #m7, .nova #m10, .nova #m11, .nova #m14{
width: 90px;height: 90px;position:relative;}

.nova #cabecera{width: 510px;height: 180px;background-color: #000;position: relative;top: -1260px;left: 180px;}

.nova #logo {width: 180px;height: 180px;background-color: #000;position: relative;top: -1440px;left: 690px;background-image: url();}

.nova #contenido {width: 686px;height: 446px;background-color: #ccc;position: relative;top: -1439px;left: 181px;border:1px dashed #000000;}

.nova #lateral {width: 120px;height: 630px;background-color: #111;position: relative;top: -2068px;left: 870px;}

.nova #pie {width: 990px;height: 20px;background-color: #777;position: relative;top: -2075px;left: 0px;clear:both;}

/* fondos y ubicacion botones de colores*/
.nova #m1 {background-color: #333;}
.nova #m2 {background-color: #360;top: -90px;left: 90px;}
.nova #m3 {background-color: #0f0;top: -90px;left: 0px;}
.nova #m4 {background-color: #111;top: -180px;left: 90px;}
.nova #m6 {background-color: #00f;top: -270px;left: 90px;}
.nova #m7 {background-color: #006;top: -270px;left: 0px;}
.nova #m10 {background-color: #360;top: -450px;left: 90px;}
.nova #m11 {background-color: #0f0;top: -450px;left: 0px;}
.nova #m14 {background-color: #00f;top: -630px;left: 90px;}

/* fondos de los otros botones*/
.nova #m2:hover {background-color: #3d6614;}
.nova #m3:hover {background-color: #33ff33;}
.nova #m6:hover {background-color: #3333ff;}
.nova #m7:hover {background-color: #141466;}
.nova #m10:hover {background-color: #3d6614;}
.nova #m11:hover {background-color: #33ff33;}
.nova #m14:hover {background-color: #3333ff;}

/*botones de menu */
.nova #m5 {background-image:url(img/inicio0.png);background-color: #000;top: -180px;left: 0px;}
.nova #m5:hover {background-image:url()}
.nova #m8 {background-image:url(img/nos0.png); background-color: #000;top: -360px;left: 90px;}
.nova #m8:hover {background-image:url()}
.nova #m9 {background-image:url(img/servicios0.png);background-color: #000;top: -360px;left: 0px;}
.nova #m9:hover {background-image:url()}
.nova #m12 {background-image:url(img/pro0.png);background-color: #000;top: -540px;left: 90px;}
.nova #m12:hover {background-image:url()}
.nova #m13 {background-image:url(img/contacto0.png);background-color: #000;top: -540px;left: 0px;}
.nova #m13:hover {background-image:url()}
.nova #m5:hover, .nova #m8:hover, .nova #m9:hover, .nova #m12:hover, .nova #m13:hover {
background-color: #999999;font-weight: bold;cursor: pointer;}

/* Estilos de texto */
/*esconde titulos principales*/
.nova #cabecera h1, .nova #cabecera h2 {margin: 0 0 0 0;}
.nova #cabecera h1 span, .nova cabecera h2 span {display:none;}
/*fin titulos principales*/

.nova #contenido p {
overflow: hidden;width: 500px;height: 370px;border: 0px solid #900;
font-family: verdana;font-size: 15px;color: #000;
line-height: 190%;text-align: justify;
margin: 60px 85px 0 85px;
display: block; }
.nova .p2 {
overflow: auto;width: 300px;height: 70px;border: 0px solid #900;
font-family: verdana;font-size: 13px;color: #000;
line-height: 190%;text-align: justify;
margin: 0 10px 0 10px;
display: block;top: 0px; }
.nova .m1 {
font-family:Verdana, Arial, Helvetica, sans-serif;font-size:13px;color: #000;
width: 270px;height: 45px;border: 1px solid #000;padding-top:10px;
margin-top:0px; display:block;background-color:#bbb;
text-align:center;vertical-align: middle;margin-bottom: 30px;margin-left: 35px;}
.nova .m2 {
font-family:Verdana, Arial, Helvetica, sans-serif;font-size:13px;color: #00f;font-weight:bold;text-decoration:underline;
width: 270px;height: 45px;border: 1px solid #000;padding-top:10px;
margin-top:0px;display:block;background-color:#ddd;
text-align:center;vertical-align: middle;margin-bottom: 30px;margin-left: 35px;}
.nova #pie p {
font-family: arial;font-size: 10px;color: #fff;text-align: center;}
.nova .d1 {float: right;font-family: arial;font-size: 8px;color: #000;line-height: 11px;}
.nova .e1{font-family: arial;font-align:center;font-size: 12px;color: #fff;line-height: 11px;}
.nova .e1:hover {font-family: arial;font-align:center;font-size: 12px;color: #fff200;line-height: 11px;}
.nova .clearfloat {clear:both;}