Como poner un fondo de color en el tema kubrick

Hola, no tengo forma humana de cambiarlo algo he modificado y no entiendo demasiado he quitado los margenes y puse esa linea azul por lo que el fondo se pone en toda la pagina entera, sabes del algun margen sombreado? bueno te dejo la hoja de estilo a ver si ves algo raro por ahi gracias por todo:

/*
Theme Name: Default
Theme URI: http://wordpress.org/
Description: The default WordPress theme that graced version 1.5 to version 2.9, based on the famous Kubrick.
Version: 1.7.2
Author: Michael Heilemann
Author URI: http://binarybonsai.com/
Tags: blue, silver, white, two-columns, fixed-width, right-sidebar, fixed-width, custom-header, threaded-comments, sticky-post, rtl-language-support, translation-ready
Text Domain: kubrick

Kubrick v1.5
http://binarybonsai.com/kubrick/

This theme was designed and built by Michael Heilemann,
whose blog you will find at http://binarybonsai.com/

The CSS, XHTML and design is released under GPL:
http://www.opensource.org/licenses/gpl-license.php

*/

/* Begin Typography & Colors */
body {
font-size: 65.5%; /* Resets 1em to 10px */
font-family: ‘Lucida Grande’, Verdana, Arial, Sans-Serif;
background: #d5d6d7 url(‘images/kubrickbgcolor.jpg’);
color: #959596;
text-align: center;
}

#page {
background-color: white;
border: 1px solid #73a0c5
;
text-align: left;
}

#header {
background: #f8f8f8 url(‘images/kubrickbgcolor.jpg’) no-repeat bottom center;
}

#headerimg {
margin: 7px 9px 0;
height: 192px;
width: 740px;
}

#content {
font-size: 1.1em;
}

.widecolumn .entry p {
font-size: 1.05em;
}

.narrowcolumn .entry, .widecolumn .entry {
line-height: 1.5em;
}

.widecolumn {
line-height: 1.5em;
}

.narrowcolumn .postmetadata {
text-align: center;
}

.thread-alt {
background-color: #FFFFFF;
}
.thread-even {
background-color: white;
}
.depth-1 {
border: 2px solid #ddd;
}

.even, .alt {

border-left: 2px solid #ddd;
}

#footer {
background: #f7f7f7 url(‘images/kubrickbgcolor.jpg’) no-repeat top;
border: none;
}

small {
font-family: Arial, Helvetica, Sans-Serif;
font-size: 0.9em;
line-height: 1.5em;
}

h1, h2, h3 {
font-family: ‘Arial’, ‘Arial’, Arial, Arial, Arial
font-weight: bold;
}
h1 {
font-size: 4.6em;
text-align: center;
}

#headerimg .description {
font-size: 2.0em;
text-align: center;
}

h2 {
font-size: 1.6em;
}

h2.pagetitle {
font-size: 1.6em;
}

#sidebar h2 {
font-family: ‘Lucida Grande’, Verdana, Sans-Serif;
font-size: 1.2em;
}

h3 {
font-size: 1.3em;
}

h1, h1 a, h1 a:hover, h1 a:visited, #headerimg .description {
text-decoration: none;
color: white;
}

h2, h2 a, h2 a:visited, h3, h3 a, h3 a:visited {
color: #0000EE;
}

h2, h2 a, h2 a:hover, h2 a:visited, h3, h3 a, h3 a:hover, h3 a:visited, #sidebar h2, #wp-calendar caption, cite {
text-decoration: none;
}

.entry p a:visited {
color: #b85b5a;
}

.sticky {
background: #f8f8f8;
padding: 0 10px 10px;
}
.sticky h2 {
padding-top: 10px;
}

.commentlist li, #commentform input, #commentform textarea {
font: 1.0em ‘Lucida Grande’, Verdana, Arial, Sans-Serif;
}
.commentlist li ul li {
background: #ffffff;
font-size: 1.0em;
border: 2px solid #102CE2
}

.commentlist li {
font-weight: bold;
}

.commentlist li .avatar {
float: right;
border: 2px solid #eee;
padding: 2px;
background: #fff;
}

.commentlist cite, .commentlist cite a {
font-weight: bold;
font-style: normal;
font-size: 1.2em;
}

.commentlist p {
font-weight: normal;
line-height: 1.5em;
text-transform: none;
}

#commentform p {
font-family: ‘Arial’, Arial, Arial, Arial;
}

.commentmetadata {
font-weight: normal;
}

#sidebar {
font: 1em ‘Lucida Grande’, Verdana, Arial, Sans-Serif;
}

small, #sidebar ul ul li, #sidebar ul ol li, .nocomments, .postmetadata, blockquote, strike {
color: #777;
}

code {
font: 1.1em ‘Courier New’, Courier, Fixed;
}

acronym, abbr, span.caps
{
font-size: 0.9em;
letter-spacing: .07em;
}

a, h2 a:hover, h3 a:hover {
color: #06c;
text-decoration: none;
}

a:hover {
color: #147;
text-decoration: underline;
}

#wp-calendar #prev a, #wp-calendar #next a {
font-size: 9pt;
}

#wp-calendar a {
text-decoration: none;
}

#wp-calendar caption {
font: bold 1.3em ‘Lucida Grande’, Verdana, Arial, Sans-Serif;
text-align: center;
}

#wp-calendar th {
font-style: normal;
text-transform: capitalize;
}
/* End Typography & Colors */

/* Begin Structure */
body {
margin: 0 0 20px 0;
padding: 0;
}

#page {
background-color: white;
margin: 20px auto;
background-color: #B8F0F1;
padding: 0;
width: 760px;
border: 2px solid #959596;
}

#header {
background-color: #73a0c5;
margin: 0 0 0 4px;
padding: 0;
height: 220px;
width: 758px;
}

#headerimg {
margin: 0;
height: 200px;
width: 100%;
}

.narrowcolumn {
float: left;
padding: 0 0 20px 50px;
margin: 0px 0 0;
width: 470px;
}

.widecolumn {
padding: 10px 0 20px 0;
margin: 5px 0 0 40px;
width: 650px;
}

.post {
margin: 0 0 10px;
text: justify;
}

.post hr {
display: block;
}

.widecolumn .post {
margin: 0;
}

.narrowcolumn .postmetadata {
padding-top: 1px;
}

.widecolumn .postmetadata {
margin: 1px 0;
}

.widecolumn .smallattachment {
text-align: center;
float: left;
width: 128px;
margin: 5px 5px 5px 0px;
}

.widecolumn .attachment {
text-align: center;
margin: 5px 0px;
}

.postmetadata {
clear: both;
}

.clear {
clear: both;
}

#footer {
padding: 0;
margin: 0 auto;
width: 760px;
clear: both;
}

#footer p {
margin: 0;
padding: 20px 0;
text-align: center;
}
/* End Structure */

/* Begin Headers */
h1 {
padding-top: 70px;
margin: 0;
}

h2 {
margin: 30px 0 0;
}

h2.pagetitle {
margin-top: 30px;
text-align: center;
}

#sidebar h2 {
margin: 5px 0 0;
padding: 0;
}

h3 {
padding: 0;
margin: 30px 0 0;
}

h3.comments {
padding: 0;
margin: 40px auto 20px ;
}
/* End Headers */

/* Begin Images */
p img {
padding: 0;
max-width: 100%;
}

/* Using ‘class=»alignright»‘ on an image will (who would’ve
thought?!) align the image to the right. And using ‘class=»centered’,
will of course center the image. This is much better than using
align=»center», being much more futureproof (and valid) */

img.centered {
display: block;
margin-left: auto;
margin-right: auto;
}

img.alignright {
padding: 4px;
margin: 0 0 2px 7px;
display: inline;
}

img.alignleft {
padding: 4px;
margin: 0 7px 2px 0;
display: inline;
}

.alignright {
float: right;
}

.alignleft {
float: left;
}
/* End Images */

/* Begin Lists

Special stylized non-IE bullets
Do not work in Internet Explorer, which merely default to normal bullets. */

html>body .entry ul {
margin-left: 0px;
padding: 0 0 0 30px;
list-style: none;
padding-left: 10px;
text-indent: -10px;
}

html>body .entry li {
margin: 7px 0 8px 10px;
}

.entry ul li:before, #sidebar ul ul li:before {
content: «0BB 020»;
}

.entry ol {
padding: 0 0 0 35px;
margin: 0;
}

.entry ol li {
margin: 0;
padding: 0;
}

.postmetadata ul, .postmetadata li {
display: inline;
list-style-type: none;
list-style-image: none;
}

#sidebar ul, #sidebar ul ol {
margin: 0;
padding: 0;
}

#sidebar ul li {
list-style-type: none;
list-style-image: none;
margin-bottom: 15px;
}

#sidebar ul p, #sidebar ul select {
margin: 5px 0 8px;
}

#sidebar ul ul, #sidebar ul ol {
margin: 5px 0 0 10px;
}

#sidebar ul ul ul, #sidebar ul ol {
margin: 0 0 0 10px;
}

ol li, #sidebar ul ol li {
list-style: decimal outside;
}

#sidebar ul ul li, #sidebar ul ol li {
margin: 3px 0 0;
padding: 0;
}
/* End Entry Lists */

/* Begin Form Elements */
#searchform {
margin: 10px auto;
padding: 5px 3px;
text-align: center;
}

#sidebar #searchform #s {
width: 108px;
padding: 2px;
}

#sidebar #searchsubmit {
padding: 1px;
}

.entry form { /* This is mainly for password protected posts, makes them look better. */
text-align:center;
}

select {
width: 130px;
}

#commentform input {
width: 170px;
padding: 2px;
margin: 5px 5px 1px 0;
}

#commentform {
margin: 5px 10px 0 0;
}
#commentform textarea {
width: 100%;
padding: 2px;
}
#respond:after {
content: «.»;
display: block;
height: 0;
clear: both;
visibility: hidden;
}
#commentform #submit {
margin: 0 0 5px auto;
float: right;
}
/* End Form Elements */

/* Begin Comments*/
.alt {
margin: 0;
padding: 10px;
}

.commentlist {
padding: 0;
text: justify;
}

.commentlist li {
margin: 15px 0 10px;
padding: 5px 5px 10px 10px;
list-style: none;
}
.commentlist li ul li {
margin-right: -5px;
margin-left: 15px;
}

.commentlist p {
margin: 10px 5px 10px 0;
}
.children { padding: 0; }

#commentform p {
margin: 5px 0;
}

.nocomments {
text-align: center;
margin: 0;
padding: 0;
}

.commentmetadata {
margin: 0;
display: block;
}
/* End Comments */

/* Begin Sidebar */
#sidebar
{
padding: 20px 0 10px 0;
margin-left: 545px;
width: 190px;
}

#sidebar form {
margin: 0;
}
/* End Sidebar */

/* Begin Calendar */
#wp-calendar {
empty-cells: show;
margin: 10px auto 0;
width: 155px;
}

#wp-calendar #next a {
padding-right: 10px;
text-align: right;
}

#wp-calendar #prev a {
padding-left: 10px;
text-align: left;
}

#wp-calendar a {
display: block;
}

#wp-calendar caption {
text-align: center;
width: 100%;
}

#wp-calendar td {
padding: 3px 0;
text-align: center;
}

#wp-calendar td.pad:hover { /* Doesn’t work in IE */
background-color: #fff; }
/* End Calendar */

/* Begin Various Tags & Classes */
acronym, abbr, span.caps {
cursor: help;
}

acronym, abbr {
border-bottom: 2px dashed #999;
}

blockquote {
margin: 15px 30px 0 10px;
padding-left: 20px;
border-left: 5px solid #ddd;
}

blockquote cite {
margin: 5px 0 0;
display: block;
}

.center {
text-align: center;
}

.hidden {
display: none;
}

.screen-reader-text {
position: absolute;
left: -1000em;
}

hr {
display: none;
}

a img {
border: none;
}

.navigation {
display: block;
text-align: center;
margin-top: 10px;
margin-bottom: 60px;
}
/* End Various Tags & Classes*/

/* Captions */
.aligncenter,
div.aligncenter {
display: block;
margin-left: auto;
margin-right: auto;
}

.wp-caption {
border: 2px solid #ddd;
text-align: center;
background-color: #f3f3f3;
padding-top: 10px;
margin: 10px;
-moz-border-radius: 3px;
-khtml-border-radius: 3px;
-webkit-border-radius: 3px;
border-radius: 3px;
}

.wp-caption img {
margin: 0;
padding: 0;
border: 0 none;
}

.wp-caption p.wp-caption-text {
font-size: 11px;
line-height: 17px;
padding: 0 4px 5px;
margin: 0;
}
/* End captions */

/* «Daisy, Daisy, give me your answer do. I’m half crazy all for the love of you.
It won’t be a stylish marriage, I can’t afford a carriage.
But you’ll look sweet upon the seat of a bicycle built for two.» */