/* Hide sidebars and nav elements */
#skip-to-nav, #navbar, #sidebar-left, #sidebar-right, #footer,
.breadcrumb, div.tabs, .links, .taxonomy,
.book-navigation, .forum-topic-navigation, .pager, .feed-icons
{
    display: none;
}

.sidebar-left #content {
    width: 90%;
    margin-left: auto;
    margin-right: auto;
}
ul li.addthis {
    display: none;
}
#header {
    display: none;
}