ciao a tutti
ho pubblicato un sito solo che il layout sta tutto a sinistra e io vorrei centrarlo tutto...
il css è questo:

codice:
html, body, h1, h2, h3, h4, ul, li {
	margin: 0;
	padding: 0;
}
h1 img {
	display: block;
}
img {
	border: 0;
}
a {
	color: #FFFFFF;
}
a:hover {
	color: #FFA405;
}
.left {
	float: left;
}
.right {
	float: right;
}
.more {
	text-align: right;
}
.clear {
	clear: both;
}

body {
	background: #3A0404 url(images/page_bg.jpg) repeat-x;
	font: 11px arial, sans-serif;
	color: #464544;
	padding-bottom: 10px;
}

/** layout **/
#wrapper {
	width: 678px;
	min-height: 750px;
	_height: 750px;
	background: url(images/header.jpg) no-repeat;
  position: relative;
}

h1 {
  padding: 25px 0 0 30px;
  font: 32px "arial black", arial, sans-serif;
  color: #151515;
}

h1 em {
  color: #ffffff;
  font-weight: bold;
  font-style: normal;
  position: relative;
  top: -4px;
}

/* nav */

#nav {
  position: absolute;
  top: 0px;
  left: 335px;
  width: 500px;
}
#nav li {
  float: left;
  background: url(images/nav_left.gif) no-repeat;
  list-style: none;
  padding-left: 10px;
  padding-right: 20px;
  padding-top: 45px;
  line-height: 1.1;
}
#nav span {
  display: block;
  font-size: 28px;
}
#nav a {
  color: #FFFFFF;
  font-size: 11px;
  font-weight: bold;
  text-decoration: none;
}

/** topcontent **/

#topcon {
  background: url(images/topcon.jpg) no-repeat;
  width: 427px;
  position: absolute;
  top: 105px;
  left: 338px;
  color: #fff;
}
#topcon-inner {
  margin: 33px 40px 41px 85px;
  height: 120px;
  overflow: auto;
}
#topcon h2 {
  font-size: 14px;
}

/** Body **/

#content {
  width: 710px;
  position: absolute;
  color: #fff;
  top: 299px;
  left: 33px;
}
#content a {
  color: #fff;
}
#content a:hover {
  color: #fee;
}
#body {
  border: 3px solid white;
  background: #901315;
  padding: 18px;
}

.box {
  float: left;
  width: 195px;
  background: #730F11;
  margin-right: 18px;
}
.box-t { background: top url(images/box_t.gif) repeat-x; }
.box-r { background: right url(images/box_r.gif) repeat-y; }
.box-b { background: bottom url(images/box_b.gif) repeat-x; }
.box-l { background: left url(images/box_l.gif) repeat-y; }
.box-tr { background: top right url(images/box_tr.gif) no-repeat; }
.box-br { background: bottom right url(images/box_br.gif) no-repeat; }
.box-bl { background: bottom left url(images/box_bl.gif) no-repeat; }
.box-tl { background: top left url(images/box_tl.gif) no-repeat; }

.box-tl {
  padding: 13px 18px;
}

.box p {
  margin: 1em 0;
}

p.more {
  margin: 0;
}

#hits {
  width: 240px;
}
#hits .box-tl {
  padding-bottom: 22px;
}
#hits ul {
  margin: 1em 0;
}
#hits li {
  list-style: none;
  margin: 0.9em 0;
}
#hits ul a {
  text-decoration: none;
}
#hits ul a:hover {
  text-decoration: underline;
}

#new {
  margin-right: 0;
}
#new .box-tl {
  padding-bottom: 18px;
}
#new p {
  margin-top: 0;
  margin-bottom: 3.6em;
}

#body h2 {
  font-size: 12px;
  text-align: right;
  margin-bottom: 1.5em;
}
#body h3 {
  font-size: 9px;
  color: #FFEA00;
}
#body .more a {
  font-weight: bold;
  text-decoration: none;
}
#body .more a:hover {
  text-decoration: underline;
}
#body .hr-yellow {
  border-top: 1px solid #FFEA00;
  padding-bottom: 1em;
  margin-top: 1em;
}

/** footer **/
#footer {
  text-align: center;
}
#footer p, #footer ul {
  margin: 0.8em;
}
#footer ul {
  margin-top: 1.2em;
}
#footer li {
  display: inline;
  list-style: none;
}
cosa devo modificare per centrare il layout? grazie!