Hola, alguen sabe como puedo centrar mi pagina, pork aparece de lado derecho del explorador y la quiero centrar, abajo pego los codigos. saludos
<head>
<title>Inicio</title>
<link rel="stylesheet" type="text/css" href="files/css/style.css" />
<STYLE>
.xf { font: italic bold 65px ;
text-align:center ;
color: blue ; }
</STYLE>
</head>
<body>
<h1>Ford</h1>
<div id="maincol">
<ul id="nav">
Inicio
Registrate
Foro
Foro M
[correo eliminado]
<SPAN CLASS="xf">XF</SPAN>
<h2>BIENVENIDO</h2>
<pre>
<h3>Damos la mas cordial bienvenida a todos
nuestros compañeros
que acaban de incorporarse a nuestras filas.</h3>
</pre>
<ul>
</div>
<div id="rightcol">
<div>
</div>
</form>
<dl>
<dt>Contenido Extra</dt>
<dd>Tu mail</dd>
<dd>[correo eliminado]</dd>
<dd>Historias</dd>
<dd>Fotos</dd>
<dt>Avisos</dt>
<dd>[correo eliminado]</dd>
<script type="text/javascript">
var motigo_monthview_months = 1;
var motigo_monthview_frame_width = 150;
var motigo_monthview_frame_height = 150;
var motigo_calendar_id = 18118;
var motigo_calendar_token = "ec1aed0d3c82b1d";
</script>
<script type="text/javascript" src="http://18118.calendars.motigo.com/js/calendar/month_view.js"></script>
</dl>
</div>
</body>
<h4>
<span xmlns:dc="http://purl.org/dc/elements/1.1/" property="dc:title">pagina ex-ford</span> by <span xmlns:cc="http://creativecommons.org/ns#" property="cc:attributionName">carlos buentello</span> is licensed under a Creative Commons Reconocimiento-No comercial-Compartir bajo la misma licencia 2.5 México License</h4>.
</html>
y el css
html {
font: 0.8em/1.3 Verdana, Helvetica, Arial, Sans-serif;
background-color: #1f1f1f;
color: #38494e;
text-align: center;
}
body {
width: 770px;
background: #fff url(../images/main_bg.gif) repeat-y;
color: #38494e;
margin: 0 auto;
padding: 0;
text-align: left;
}
a:link, a:visited {
color: #869ea8;
background-color: inherit;
text-decoration: none;
}
a:hover, a:active {
color: #1f1f1f;
background-color: inherit;
text-decoration: none;
}
img, a img {
border: 0;
}
ul, ol {
position: relative;
}
h1 {
text-indent: -10000px;
width: 770px;
height: 150px;
margin: 0;
padding: 0;
background: transparent url(../images/head.gif) no-repeat;
}
#headblank {
text-indent: -10000px;
width: 770px;
height: 150px;
margin: 0;
padding: 0;
background: transparent url(../blank-image-files/head_blank.gif) no-repeat;
}
ul {
margin: 10px 0 0 40px;
padding: 0;
}
ul li {
margin: 2px 0 0 0;
padding: 0 0 0 17px;
list-style-type: none;
background: transparent url(../images/li.gif) no-repeat left;
}
dl, dt, dd {
margin: 0;
padding: 0;
}
ul#none {
display: none;
}
div#maincol {
width: 535px;
padding: 0 0 20px 0;
float: left;
}
div#maincol h2 {
margin: 15px 0 7px 13px;
padding: 0 0 0 7px;
background: #fff url(../images/heading_ul.gif) repeat-x bottom left;
font: 1.8em Georgia, "Times New Roman", Times, Serif;
color: #38494e;
width: 300px;
}
div#maincol h3 {
margin: 10px 0 3px 23px;
padding: 0 0 0 2px;
background: #fff url(../images/heading_ul.gif) repeat-x bottom left;
font: 1.5em Arial, Helvetica, Verdana, Sans-serif;
color: #666;
}
div#maincol p {
margin: 7px 20px 21px 20px;
padding: 0;
color: #38494e;
background-color: inherit;
}
ul#nav {
width: 535px;
height: 33px;
background: transparent url(../images/nav_bg.gif) repeat-x top left;
margin: 0;
padding: 0;
}
ul#nav li {
margin: 0;
padding: 0;
float: left;
list-style-type: none;
display: block;
height: 35px;
background: transparent url(../images/nav_sep.gif) no-repeat right;
}
ul#nav li a:link, ul#nav li a:visited {
color: #38494e;
background-color: inherit;
text-decoration: none;
line-height: 29px;
padding: 5px 24px 7px 20px;
}
ul#nav li a:hover, ul#nav li a:focus, ul#nav li a:active {
color: #38494e;
text-decoration: none;
line-height: 29px;
margin: 0;
padding: 5px 24px 9px 20px;
background-color: inherit;
background: url(../images/nav_hover.gif) no-repeat bottom;
}
ul#nav > li > a:hover, ul#nav > li > a:focus, ul#nav > li > a:active {
padding: 5px 24px 10px 20px;
}
div#rightcol {
width: 210px;
margin-left: 10px;
padding: 0 10px 20px 0;
background: transparent url(../images/side_bg.gif) no-repeat bottom;
position: relative;
bottom: 30px;
right: 3px;
font-size: 0.9em;
}
body > div#rightcol {
width: 200px;
margin-left: 538px;
padding: 0 10px 20px 10px;
background: transparent url(../images/side_bg.gif) no-repeat bottom;
}
div#rightcol p {
margin: 10px 0 0 13px;
}
div#rightcol > p {
margin: 10px 0 0 3px;
}
div#rightcol dl {
margin: 10px 0 0 0;
padding: 0 0 50px 0;
}
div#rightcol > dl {
margin: 10px 0 0 -10px;
padding: 0 0 50px 0;
}
div#rightcol h3, div#rightcol dt {
margin: 20px 0 8px 8px;
padding: 0 0 0 7px;
background: #fff url(../images/heading_ul.gif) repeat-x bottom left;
font: 1.8em Georgia, "Times New Roman", Times, Serif;
color: #666;
width: 190px;
}
div#rightcol > h3, div#rightcol > dt {
margin: 20px 0 10px 2px;
}
div#rightcol dl dd {
margin: 2px 0 0 17px;
padding: 0 0 0 17px;
list-style-type: none;
background: transparent url(../images/li.gif) no-repeat left;
}
div#rightcol > dd {
margin: 2px 0 0 0;
padding: 0 0 0 17px;
list-style-type: none;
background: transparent url(../images/li.gif) no-repeat left;
}
div#rightcol form#searchform h3 {
margin-left: 10px;
}
div#rightcol form#searchform > h3 {
margin-left: 0;
}
div#rightcol form#searchform input {
margin: 10px 0 0 10px;
}
div#rightcol form#searchform input#searchinput {
border: 1px solid #ddd;
width: 120px;
height: 20px;
padding: 4px 5px 0 5px;
color: #666;
background-color: inherit;
}
div#rightcol form#searchform input#searchsubmit {
margin: 0 0 0 10px;
width: 40px;
}
pre {
border: 1px solid #ddd;
background-color: #f7f7f7;
margin: 20px;
padding: 10px;
color: #38494e;
}
code {
font: 12px/1.5 "Courier New", Courier, Monospace;
}
h4 {
clear: both;
margin: 0;
padding: 0 10px 0 0;
width: 760px;
height: 20px;
color: #b1bebb;
text-align: right;
background: #363636 url(../images/foot_bg.gif) bottom repeat-x;
font-size: 0.8em;
font-weight: normal;
line-height: 20px;
}
<head>
<title>Inicio</title>
<link rel="stylesheet" type="text/css" href="files/css/style.css" />
<STYLE>
.xf { font: italic bold 65px ;
text-align:center ;
color: blue ; }
</STYLE>
</head>
<body>
<h1>Ford</h1>
<div id="maincol">
<ul id="nav">
<SPAN CLASS="xf">XF</SPAN>
<h2>BIENVENIDO</h2>
<pre>
<h3>Damos la mas cordial bienvenida a todos
nuestros compañeros
que acaban de incorporarse a nuestras filas.</h3>
</pre>
<ul>
</div>
<div id="rightcol">
<div>
</div>
</form>
<dl>
<dt>Contenido Extra</dt>
<dd>Tu mail</dd>
<dd>[correo eliminado]</dd>
<dd>Historias</dd>
<dd>Fotos</dd>
<dt>Avisos</dt>
<dd>[correo eliminado]</dd>
<script type="text/javascript">
var motigo_monthview_months = 1;
var motigo_monthview_frame_width = 150;
var motigo_monthview_frame_height = 150;
var motigo_calendar_id = 18118;
var motigo_calendar_token = "ec1aed0d3c82b1d";
</script>
<script type="text/javascript" src="http://18118.calendars.motigo.com/js/calendar/month_view.js"></script>
</dl>
</div>
</body>
<h4>

<span xmlns:dc="http://purl.org/dc/elements/1.1/" property="dc:title">pagina ex-ford</span> by <span xmlns:cc="http://creativecommons.org/ns#" property="cc:attributionName">carlos buentello</span> is licensed under a Creative Commons Reconocimiento-No comercial-Compartir bajo la misma licencia 2.5 México License</h4>.
</html>
y el css
html {
font: 0.8em/1.3 Verdana, Helvetica, Arial, Sans-serif;
background-color: #1f1f1f;
color: #38494e;
text-align: center;
}
body {
width: 770px;
background: #fff url(../images/main_bg.gif) repeat-y;
color: #38494e;
margin: 0 auto;
padding: 0;
text-align: left;
}
a:link, a:visited {
color: #869ea8;
background-color: inherit;
text-decoration: none;
}
a:hover, a:active {
color: #1f1f1f;
background-color: inherit;
text-decoration: none;
}
img, a img {
border: 0;
}
ul, ol {
position: relative;
}
h1 {
text-indent: -10000px;
width: 770px;
height: 150px;
margin: 0;
padding: 0;
background: transparent url(../images/head.gif) no-repeat;
}
#headblank {
text-indent: -10000px;
width: 770px;
height: 150px;
margin: 0;
padding: 0;
background: transparent url(../blank-image-files/head_blank.gif) no-repeat;
}
ul {
margin: 10px 0 0 40px;
padding: 0;
}
ul li {
margin: 2px 0 0 0;
padding: 0 0 0 17px;
list-style-type: none;
background: transparent url(../images/li.gif) no-repeat left;
}
dl, dt, dd {
margin: 0;
padding: 0;
}
ul#none {
display: none;
}
div#maincol {
width: 535px;
padding: 0 0 20px 0;
float: left;
}
div#maincol h2 {
margin: 15px 0 7px 13px;
padding: 0 0 0 7px;
background: #fff url(../images/heading_ul.gif) repeat-x bottom left;
font: 1.8em Georgia, "Times New Roman", Times, Serif;
color: #38494e;
width: 300px;
}
div#maincol h3 {
margin: 10px 0 3px 23px;
padding: 0 0 0 2px;
background: #fff url(../images/heading_ul.gif) repeat-x bottom left;
font: 1.5em Arial, Helvetica, Verdana, Sans-serif;
color: #666;
}
div#maincol p {
margin: 7px 20px 21px 20px;
padding: 0;
color: #38494e;
background-color: inherit;
}
ul#nav {
width: 535px;
height: 33px;
background: transparent url(../images/nav_bg.gif) repeat-x top left;
margin: 0;
padding: 0;
}
ul#nav li {
margin: 0;
padding: 0;
float: left;
list-style-type: none;
display: block;
height: 35px;
background: transparent url(../images/nav_sep.gif) no-repeat right;
}
ul#nav li a:link, ul#nav li a:visited {
color: #38494e;
background-color: inherit;
text-decoration: none;
line-height: 29px;
padding: 5px 24px 7px 20px;
}
ul#nav li a:hover, ul#nav li a:focus, ul#nav li a:active {
color: #38494e;
text-decoration: none;
line-height: 29px;
margin: 0;
padding: 5px 24px 9px 20px;
background-color: inherit;
background: url(../images/nav_hover.gif) no-repeat bottom;
}
ul#nav > li > a:hover, ul#nav > li > a:focus, ul#nav > li > a:active {
padding: 5px 24px 10px 20px;
}
div#rightcol {
width: 210px;
margin-left: 10px;
padding: 0 10px 20px 0;
background: transparent url(../images/side_bg.gif) no-repeat bottom;
position: relative;
bottom: 30px;
right: 3px;
font-size: 0.9em;
}
body > div#rightcol {
width: 200px;
margin-left: 538px;
padding: 0 10px 20px 10px;
background: transparent url(../images/side_bg.gif) no-repeat bottom;
}
div#rightcol p {
margin: 10px 0 0 13px;
}
div#rightcol > p {
margin: 10px 0 0 3px;
}
div#rightcol dl {
margin: 10px 0 0 0;
padding: 0 0 50px 0;
}
div#rightcol > dl {
margin: 10px 0 0 -10px;
padding: 0 0 50px 0;
}
div#rightcol h3, div#rightcol dt {
margin: 20px 0 8px 8px;
padding: 0 0 0 7px;
background: #fff url(../images/heading_ul.gif) repeat-x bottom left;
font: 1.8em Georgia, "Times New Roman", Times, Serif;
color: #666;
width: 190px;
}
div#rightcol > h3, div#rightcol > dt {
margin: 20px 0 10px 2px;
}
div#rightcol dl dd {
margin: 2px 0 0 17px;
padding: 0 0 0 17px;
list-style-type: none;
background: transparent url(../images/li.gif) no-repeat left;
}
div#rightcol > dd {
margin: 2px 0 0 0;
padding: 0 0 0 17px;
list-style-type: none;
background: transparent url(../images/li.gif) no-repeat left;
}
div#rightcol form#searchform h3 {
margin-left: 10px;
}
div#rightcol form#searchform > h3 {
margin-left: 0;
}
div#rightcol form#searchform input {
margin: 10px 0 0 10px;
}
div#rightcol form#searchform input#searchinput {
border: 1px solid #ddd;
width: 120px;
height: 20px;
padding: 4px 5px 0 5px;
color: #666;
background-color: inherit;
}
div#rightcol form#searchform input#searchsubmit {
margin: 0 0 0 10px;
width: 40px;
}
pre {
border: 1px solid #ddd;
background-color: #f7f7f7;
margin: 20px;
padding: 10px;
color: #38494e;
}
code {
font: 12px/1.5 "Courier New", Courier, Monospace;
}
h4 {
clear: both;
margin: 0;
padding: 0 10px 0 0;
width: 760px;
height: 20px;
color: #b1bebb;
text-align: right;
background: #363636 url(../images/foot_bg.gif) bottom repeat-x;
font-size: 0.8em;
font-weight: normal;
line-height: 20px;
}