CSS hack for "monochrome" theme... what changes will make this theme wider?

/*
Theme Name:monochrome
Theme URI:
Description:This theme supports widget, threaded-comments, theme-options,and translation is ready. Also including page-navigation and multi level dropdown menu.
Author:mono-lab
Author URI:http://www.mono-lab.net
Version:2.6-wpcom
Tags: black, white, three-columns, fixed-width, theme-options, threaded-comments, translation-ready, rtl-language-support, sticky-post
*/

/* ----- basic --------------------------------------------------------------------------------------------------------------------------------- */
body { margin:0; padding:0; background:#f2f2f2;
font-family: Arial, Helvetica, sans-serif;
font-size:12px; color:#666; }
a img { border:none; }
a, a:visited { color:#7f8e91; text-decoration:none; outline:none; }
a:hover { color:#33a8e5; text-decoration:underline; }
p { margin:0 0 1em 0; padding:0; line-height:200%; }
ul { list-style-type:none; margin:0 0 1em 0; padding:0; line-height:0%; }
ul li { margin:0; padding:0; line-height:normal; zoom:1; }
ol { margin:0 0 1em 23px; padding:0; }
* html ol { margin:0 0 1em 23px; padding:0; }
ol li { padding:0 0 5px 0; }
form,table,input,textarea { margin:0; padding:0; }
dt { font-weight:bold; }
dd { margin-bottom:1em; }
table { border-collapse:collapse; width:100%; border:0; }
blockquote { margin:0 0 1em 0; padding:35px 20px 0 20px; border:1px solid #ccc; background:#fafafa url(img/quote1.gif) no-repeat 10px 10px; }
blockquote p { margin:0 0 5px 0; }
.quote_bottom { height:30px; background:#fafafa url(img/quote2.gif) no-repeat right ; margin-right:-10px; }
pre { border:1px solid #ccc; background:#fafafa; padding:10px 20px; margin:0 0 1em 0; overflow:auto; }
object { display:block; margin:0 auto; }
.wp-caption-text { text-align:center; }
.alignright { float:right; }
.alignleft { float:left; }
.aligncenter { display:block; margin-left:auto; margin-right:auto; }
.centered { display: block; margin-left:auto; margin-right:auto; }
.clear { clear:both; }
embed { display:block; margin:0 auto 1em auto; }
big { font-size:140%; }
hr { background:#ccc; margin:0 0 2em 0; border:none; height:1px; }
fieldset { border:1px solid #ccc; }

/* ----- layout -------------------------------------------------------------------------------------------------------------------------------- */
#wrapper { width:930px; margin:0 auto; }
#header { background:url(img/header.gif) no-repeat bottom; }
#contents { background:url(img/side.gif) repeat-y; }
#left_col { float:left; display:inline; width:690px; margin:0 0 0 2px; }
#right_col { float:right; display:inline; width:236px; margin:51px 2px 30px 0; }
#footer { background:url(img/footer.gif) no-repeat top; height:90px; }

/* ----- header -------------------------------------------------------------------------------------------------------------------------------- */

#logo { float:left; display:inline; margin:26px 0 0 5px; }

/*blogtitle*/
#logo a, #logo a:visited { color:#333; font-size:24px; }
#logo a:hover { text-decoration:none; color:#33a8e5; }

/*description*/
#logo h1 { font-weight:normal; line-height:100%; margin:0; padding:0; color:#aaa; font-size:11px; }

/*header menu is at the bottom of this page*/

/* ----- left_col ------------------------------------------------------------------------------------------------------------------------------ */
.post { background:url(img/post_line.gif) no-repeat left bottom; }
#single_post { background:none; }
.post_even { background:url(img/meta_stripe.gif) repeat-y left; }
.post_content_wrapper { float:right; width:510px; padding:50px 15px; overflow:hidden; }
.post_meta { float:left; display:inline; width:120px; padding:0 15px 35px; margin:35px 0 0 0; }
.content_noside { float:right; width:510px; padding:15px; }

/* post contents */
.post h2, #single_post h2, .page h2 { font-size:16px; margin:0 0 11px 0; font-weight:normal; line-height:120%; background:url(img/stripe1.gif) repeat-x bottom; padding:0 0 13px 0; }
.post h2 a, .post h2 a:visited, #single_post h2 span, .page h2 span { color:#666; line-height:120%; display:inline-block; padding:0 0 13px 0; }
.post h2 a:hover { text-decoration:none; color:#2089cc; }

.post_content {line-height:160%; }
.post_content p { margin:0 0 1em 0; }

.post_content a,.post_content a:visited { color:#2089cc; text-decoration:underline; }
.post_content a:hover { color:#e2415b; }
.post_content a.more-link, .post_content a.more-link:visited
{ display:block; clear:both; color:#666; margin:15px 0 0 0; height:20px; padding:0 0 4px 45px; background:url(img/read_more.gif) no-repeat left top; text-decoration:none; }
.post_content a.more-link:hover { color:#2089cc; background:url(img/read_more.gif) no-repeat left bottom; text-decoration:none; }

.post img, .post a img { border:1px solid #ccc; padding:5px; margin-bottom: 10px; background:#f2f2f2; max-width:98%; }
.post a:hover img { border:1px solid #38a1e5; background:#9cd1e1; }
.post img.centered,div.centered { display:block; margin:0 auto; }
.post img.alignright,div.alignright { margin:4px 0 15px 15px; display:inline; }
.post img.alignleft,div.alignleft { margin:4px 15px 15px 0; display:inline; }
.post img.wp-smiley { border:0px; padding:0px; margin:0px; background:none; }

.post table { margin:0 0 2em 0; }
.post td, .post th { border:1px solid #ccc; padding:15px; }
.post th { background:#eee; font-weight:normal; }

.post_content ul li { margin:0 0 1em 0; line-height:160%; background:url(img/bullet1.gif) no-repeat 3px 7px; padding:0 0 0 18px; }
.post_content ol li { margin:0 0 1em 0; }
.post_content input { margin:5px 0; }

/* post meta */
.post_meta { font-size:11px; text-align:right; line-height:160%; margin:34px 0 0 0; }
.post_meta dd { margin-left:0; }
.post_meta dt { color:#999; margin:20px 0 0 0; padding-top:20px; background:url(img/dot1.gif) repeat-x top; }
.post_meta dt.meta_date { padding:16px 0 5px 0; margin:0; background:none; }
.post_meta a, .post_meta a:visited { color:#666; }
.post_meta a:hover { color:#33a8e5; }
.post_date { font-size:32px; padding:5px 0 0 0; }
.post_date span { color:#666; }

/* odd post color */
.meta_comment a, .meta_comment a:visited, .post_date, .post_meta dt.meta_comment { color:#33a8e5; }

/* even post color */
.post_even .meta_comment a, .post_even .meta_comment a:visited, .post_even .post_date, .post_even .post_meta dt.meta_comment, .post_even .post_meta a:hover
{ color:#75e730; }

/* sticky posts */
.sticky .post_content { background:#FAFAFA; border:1px solid #D9D9D9; padding:2em 2em 1em 2em; }

/* page links */
.page-link { margin:0 0 1em 0; word-spacing:0.5em; }
.page-link a:link, .page-link a:visited { border: 1px solid #999; border-radius: 4px; -moz-border-radius:4px;
-webkit-border-radius: 4px;
color: #999;
padding:0.5em 0.75em;
text-decoration:none;
}
.page-link a:active,
.page-link a:hover {
border-color: #89A9C5;
background: #E6F3F7;
border-color: #B5DDE9;
color:#2089CC;
}

.navigation .alignright {
margin-right: 0;
}
.navigation img {
margin: 0 !important;
}
.post_content img {
height: auto !important;
}

/* ----- right_col ----------------------------------------------------------------------------------------------------------------------------- */
.side_box { color:#666; margin:0 15px 25px; font-size:11px; background:url(img/dot1.gif) repeat-x top; clear:both; padding:30px 0 0; }
.first_side_box { background:none; padding:0; }

#right_col h3 { font-size:11px; color:#999; font-weight:normal; text-transform:uppercase; line-height:100%; margin:0 0 1em 0; padding:0; }
#right_col a, #right_col a:visited { color:#7d7d7d; }
#right_col a:hover { color:#f3dc19; }

.side_box ul { margin:0; }
.side_box li { margin:0 0 1em 0; line-height:140%; }
.side_box li li { padding:0 0 0 1em; margin:3px 0; }

#information_area { padding:0 0 0 0; margin:0 0 20px 0; }
#information { color:#7d7d7d; background:url(img/stripe4.gif) left top; padding:10px; border:1px solid #454545; margin:0 15px; line-height:160%; }
#entries_rss { font-size:11px; background:url(img/entries_rss.gif) no-repeat left top; padding:2px 0 0 18px; margin:8px 15px 0 0; float:right; display:inline; }
#entries_rss a:hover { text-decoration:none; }

/* search area */
#search_area { width:206px; height:27px; background:url(img/search.gif) no-repeat left top; margin:0 0 7px 0; }
#search_input { float:left; margin:7px 0 0 10px; border:0px; height:15px; display:inline; width:150px; font-size:12px; color:#999; background:transparent; }
#search_button { float:right; }
#tag_list { margin:0 0 -25px 0; }
.search_tag { float:right; display:block; margin:0 0 5px 0; padding:2px 0 2px 24px; font-size:11px; background:url(img/tag1.gif) no-repeat left top; }
.search_tag:hover { text-decoration:none; }
.active_search_tag { background:url(img/tag2.gif) no-repeat left top; }
#tag_list .wp-tag-cloud { clear:both; margin:0 0 10px 0; border:1px solid #f3dc19; background:#333; padding:6px; display:none; }
#tag_list .wp-tag-cloud li { display:inline; margin:0 5px 0 0; line-height:170%; }

#search_area_top { background:none; padding:0; margin:0 15px 25px; }

/* calendar */
#wp-calendar { margin:0 auto; width:100%; color:#777; }
#wp-calendar th, #wp-calendar td { border:1px solid #444; padding:0; width:14%; line-height:220%; text-align:center; }
#wp-calendar th { line-height:100%; padding:4px 0 2px 0; font-weight:normal; }
#wp-calendar td a, #wp-calendar td a:visited { display:block; text-decoration:none; color:#f3dc19; background:#111; }
#wp-calendar td a:hover { text-decoration:none; background:#444; }
#wp-calendar caption { padding:8px 0; }
#wp-calendar th { background:#111; }
#wp-calendar tfoot td { border:none; padding:5px 0; }
#wp-calendar #prev a, #wp-calendar #prev a:visited, #wp-calendar #next a, #wp-calendar #next a:visited
{ text-decoration:none; background:none; }
#wp-calendar #prev a:hover, #wp-calendar #next a:hover { text-decoration:underline; }
#wp-calendar td#today { background:#111; color:#f3dc19; text-decoration:underline; }

/* recent post date (for non widget user) */
.side_box li.side_date { margin:0; padding:0; }

/* ----- footer ------------------------------------------------------------------------------------------------------------------------------- */
#site-info { float:left; display:inline; margin:55px 0 0 13px; color:#777; }
#site-info a, #site-info a:visited { text-decoration:underline; }

#return_top a { position:absolute; position:fixed; right:15px; bottom:15px; width:18px; height:99px;
display:block; background:url(img/return_top.png) no-repeat left top; }
#return_top a:hover { background:url(img/return_top.png) no-repeat right top; }

/* ----- page ---------------------------------------------------------------------------------------------------------------------------------- */
#page_noside_contents { background:url(img/side_noside.gif) repeat-y; padding:30px 122px 10px; }
#page_noside_header { background:url(img/header_noside.gif) no-repeat top; height:32px; margin:-32px 0 0 0; }
#page_noside_post { padding:0 15px 20px; background:none; }
#footer_noside { background:url(img/footer_noside.gif) no-repeat top; height:90px; }
#page_date { margin:-9px 0 0 0; font-size:11px; }

/* ----- archive/category/tag/search/ ---------------------------------------------------------------------------------------------------------- */
#headline { background:url(img/headline_bottom.gif) no-repeat left bottom; width:510px; margin:0 0 20px 0; }
#headline p { background:url(img/headline_top.gif) no-repeat left top; padding:26px 15px 22px; font-weight:bold; font-size:14px; margin:0; line-height:100%; text-align:center; }
.archive_contents { margin:0 0 20px 0; padding:0 15px 20px; background:url(img/dot1.gif) repeat-x bottom; }
.archive_contents h2 { font-size:14px; margin:0 0 5px 0; padding:0; }
.archive_meta { margin:0 0 5px 0; color:#999; }
.archive_meta a, .archive_meta a:visited { color:#999; }
.archive_meta li { display:inline; font-size:11px; margin:0 10px 0 0; }
.archive_contents p { font-size:11px; margin:0; }
.archive_contents p a, .archive_contents p a:visited { color:#777; }
.archive_contents p a:hover { color:#33a8e5; }

/* ----- page navi ----------------------------------------------------------------------------------------------------------------------------- */
.page_navi { margin:0 0 10px 0; padding:20px 0 0 0; }
.page_navi li { line-height:0%; display:inline; padding:0; margin:0; font-size:11px; }
.page_navi a, .page_navi a:visited, .page_navi a:hover, .page_navi span.current,
.page_navi span.pages, .page_navi span.extend, .page_navi span.current, .page_navi span.dots
{ color:#999; width:30px; padding:0; margin:0 3px 0 0; display:block; float:left; text-align:center; line-height:30px; background:url(img/pager1.gif) no-repeat left top; }
.page_navi a:hover { color:#999; background:url(img/pager1.gif) no-repeat left bottom; text-decoration:none; }
.page_navi span.current { background:url(img/pager2.gif) no-repeat left top; color:#fff; }

/* ----- header-menu --------------------------------------------------------------------------------------------------------------------------- */
#header_menu { float:right; display:inline; margin:20px 0 55px 0; background: url(img/header_menu_right.gif) no-repeat right top; }

#menu { float:left; background: url(img/header_menu_left.gif) no-repeat left top; font-size:11px; margin:0; }
#menu, #menu ul { line-height:1; margin:0; padding:0; }
#menu li { position:relative; float:left; border-left:1px solid #444; height:48px; margin:2px 0 0 0; z-index:10; }
#menu ul li { height:auto; border-left:none; padding:0; left:auto; margin:0; }
#menu a:link, #menu a:visited { color:#999; display:block; padding:19px 30px 14px; position:relative; }
#menu a:hover { color:#f3193d; text-decoration:none; background:#333; }
#menu ul { position:absolute; top:48px; left:0; display:none; opacity:0; width:200px; }
#menu ul ul { margin:0px 0 0 189px; top:0; left: 0px; }

#menu ul a:link, #menu ul a:visited,
#menu .current_page_item ul a:link, #menu .current_page_item ul a:visited,
#menu ul .current_page_item a:link, #menu ul .current_page_item a:visited,
#menu ul .current_page_item ul a:link, #menu ul .current_page_item ul a:visited,
#menu .current-cat ul a:link, #menu .current-cat ul a:visited,
#menu ul .current-cat a:link, #menu ul .current-cat a:visited,
#menu ul .current-cat ul a:link, #menu ul .current-cat ul a:visited
{ color:#999; background:#282828; line-height:140%; padding:9px 28px 7px; border:1px solid #444; width: 132px; margin:-1px 0 0 0; }
#menu ul a:hover, #menu .current_page_item ul a:hover, #menu .current-cat ul a:hover,
#menu .first_menu ul a:hover, #menu .last_menu ul a:hover
{ color:#f3193d; background:#333; }

#menu .current_page_item, #menu .current-cat { background:url(img/stripe2.gif) left top; z-index:9;}
#menu .current_page_item a:link, #menu .current_page_item a:visited,
#menu .current-cat a:link, #menu .current-cat a:visited
{ color:#f3193d; padding-bottom:21px; background:url(img/header_menu_arrow.gif) no-repeat center bottom; }
#menu ul .current_page_item a:link, #menu ul .current_page_item a:visited,
#menu ul .current-cat a:link, #menu ul .current-cat a:visited
{ color:#f3193d; background:#282828 url(img/stripe2.gif) left top; }
#menu ul .current_page_item ul a:link, #menu ul .current_page_item ul a:visited,
#menu ul .current-cat ul a:link, #menu ul .current-cat ul a:visited
{ color:#999; background:#282828; }
#menu ul .current_page_item ul a:hover, #menu ul .current-cat ul a:hover { color:#f3193d; background:#333; z-index: 100; }

#menu .first_menu { border:none; background:none; }
#menu .first_menu_active { background:url(img/header_menu_first_active.gif) no-repeat left top; }
#menu .first_menu a:hover { background:url(img/header_menu_first_hover.gif) no-repeat left top; }
#menu .last_menu { background:none; }
#menu .last_menu_active { background:url(img/header_menu_last_active.gif) no-repeat right top; }
#menu .last_menu a:hover { background:url(img/header_menu_last_hover.gif) no-repeat right top; }

#menu ul .parent_menu > a:link, #menu ul .parent_menu > a:visited { background:#282828 url(img/arrow4.gif) no-repeat right 14px; }
#menu ul .parent_menu > a:hover { background:#333 url(img/arrow4.gif) no-repeat right 14px; }

/* ---------- clearfix hack ---------- */
.clearfix:after { content: "."; display: block; clear: both; height: 0; visibility: hidden; }
.clearfix { display: inline-block; }
/* exlude MacIE5 \*/
* html .clearfix { height: 1% }
.clearfix {display:block;}
/* end MacIE5 */

#comments_wrapper { float:right; width:540px; padding:0 0 15px 0; }

#comment_area, #trackback_area { margin:15px 0 20px 0; padding:0 0 5px 0; border-bottom:1px solid #ccc; }
#trackback_area { display:none; }

/* ------ comment_header ----------------------------------------------------------------------------------------------------------------------- */
#comment_header { border-bottom:1px solid #ccc; font-size:11px; position:relative; }
#comment_header li { display:inline; float:left; padding:5px 10px; }

#comment_header_left { float:left; display:inline; margin:0 0 0 5px; }
#add_comment a { background:url(img/write_comment.gif) no-repeat left center; padding:0 0 0 20px; }
#comment_feed a { background:url(img/comment_rss.gif) no-repeat left center; padding:0 0 0 20px; }

#comment_header_right { clear:left; position:absolute; top:-1px; right:15px; background:#fff; }
#comment_header_right li, #comment_header_right #trackback_closed { border-top:1px solid #fff; border-bottom:1px solid #ccc; }
#comment_header_right li.comment_switch_active,#comment_header_right #comment_closed { border:1px solid #ccc; border-bottom:1px solid #fff; }
.comment_switch_active a { color:#33a8e5; }

/* ------ comment ------------------------------------------------------------------------------------------------------------------------------ */
.commentlist { list-style-type:none; margin:0; padding:0; }
.comment { border:1px solid #ccc; color:#777; margin:0 15px 15px; padding:15px 0 3px; background:#eee; }
.even_comment, .odd_comment_children { background:#eee; }
.odd_comment, .even_comment_children { background:#fdfdfd; }
.admin-comment { }

/* ----- comment-meta ----- */
.comment-meta { height:56px; position:relative; }

.comment-meta-left { position:absolute; left:15px; top:0; }
.commentlist .avatar { border:1px solid #ccc; background:#fff; width:37px; height:37px; padding:2px; display:inline; float:left; margin:0 15px 0 0; }
.comment-name-date { padding:6px 0 0 0; float:left; }

.commentlist a, .commentlist a:visited, .comment-name { color:#2d96bd; }
.commentlist a:hover { color:#ef3982; }
a.admin-url { text-decoration:underline; }
a.guest-url { text-decoration:underline; }

.comment-date { font-size:11px; color:#757676; margin:0 0 0 0; }

.comment-act { background:url(img/arrow2.gif) no-repeat left 5px; font-size:11px; position:absolute; right:12px; top:5px; padding:0 0 0 13px; }
.comment-act li { display:inline; }
.comment-reply a, .comment-reply a:visited { border-right:1px solid #aaa; padding:0 10px 0 0; margin:0 6px 0 0; }
.comment-edit a, .comment-edit a:visited { border-left:1px solid #aaa; padding:0 0 0 10px; margin:0 0 0 6px; }

/* ----- comment-contents ----- */
.comment-content { padding:0; clear:both; margin:0 15px; }
* html .comment-content { padding:5px 0 0 0; }
.comment-content a, .comment-content a:visited { text-decoration:underline; }
.comment-content a:hover { }
.comment blockquote span { margin:0 0 -1em 0; display:block; }

.comment-note { display:block; font-size:11px; margin:0 0 1em 0; color:#33a8e5; border:1px solid #94ddd4; padding:10px 15px; background:#d6f4f0; }

.comment_closed { border:1px solid #ccc; text-align:center; margin:0 15px 15px 15px; padding:15px; background:#fff url(img/stripe3.gif) left top; }
.page .comment_closed { display: none; }
#trackback_closed { background:url(img/arrow1.gif) no-repeat left center; padding:0 0 0 12px; }

/* ----- comment-author-highlighting ----- */
.bypostauthor { background: #E6F3F7; border-color: #B5DDE9; }

/* ----- trackback-contens ----- */
.trackback_time { font-size:11px; color:#757676; margin:0 0 7px 15px; }
.trackback_title { margin:2px 0 8px 0; margin:0 0 10px 15px; }

#trackback_url_wrapper { margin:0 15px 20px; font-size:11px; }
#trackback_url_wrapper label { margin:0 0 2px 5px; display:block; }
#trackback_url_wrapper input { background:#fff url(img/arrow1.gif) no-repeat 10px center; border:1px solid #ccc; color:#777; padding:5px 20px; width:468px; }

/* ----- comment-pager ----- */
#comment_pager { margin:0 15px 10px 15px; height:24px; }
#comment_pager a, #comment_pager span { display:inline; float:left; margin:0 10px 0 0; }
#comment_pager .current { text-decoration:underline; }

/* ---------- form area ------------------------------------------------------------------------------------------------------------------------- */
.comment_form_wrapper { border:1px solid #ccc; margin:0 15px 15px; padding:15px; background:#fff url(img/stripe3.gif) left top; }

#cancel_comment_reply { background:url(img/arrow2.gif) no-repeat left center; margin:0 0 1em 0; padding:0 0 0 11px; }

#comment_user_login p { padding:0 0 0 1px; margin:0; line-height:100%; }
#comment_user_login span { margin:0 0 0 40px; }

#comment_login { margin:0; padding:3px 30px 10px 30px; }
#comment_login p { margin:0; padding:12px 0 11px 36px; line-height:100%; }
#comment_login a { margin:0 0 0 20px; padding:0 0 0 20px; background:url(img/arrow1.gif) no-repeat 10px 3px; }

#guest_info { padding:0; width:98%; }
#guest_info div { margin:0 0 12px 0; text-align:left; }
#guest_info input { margin:0; border:1px solid #ccc; padding: 3px 5px; width:70%; background:#fff; color:#777; }
#guest_info label { display:block; margin:0 0 5px 0; padding:0 0 0 0; font-size:11px; color:#888;}
#guest_info span { color:#666; margin:0 10px 0 0; }

#comment_textarea textarea { width:90%; margin:15px 0 0 0; padding:15px; height:150px; border:1px solid #ccc;
background:#fff; color:#777; font-size:11px; overflow:auto; }

#submit_comment { margin:30px auto 0 auto; width:200px; display:block; background:#fff; color:#666; border:1px solid #ccc; padding:4px 0; cursor:pointer; }
#submit_comment:hover { border:1px solid #33a8e5; color:#33a8e5; }

#back_top_comment { float:right; background:url(img/arrow3.gif) no-repeat left center; padding:0 0 0 16px; display:inline; margin:0 15px 10px 0; font-size:11px; }

#input_hidden_field { display:none; }

#submit_comment_wrapper {
margin-bottom: 15px;
}

/* ----- password protected ----- */
.nocomments { text-align:center; margin:0 15px; color:#e2415b; border:1px solid #ccc; background:#fff url(img/stripe3.gif) left top; }
.nocomments p { margin:15px 20px; font-size:12px; }