The CSS needed to display the alternate sidebar properly in the CBOX Theme

cbox-sidebar.php

// Alt Sidebar
function cbox_alt_sidebar_css() { { 
	if ( !bp_is_blog_page()  ): ?>
		<style>
			#content {
			width: 55%;
			}
			#sidebar {
				width: 25%;
			}
			#sidebar-alt {
				width: 20%;
			}
			/*Float the sidebar to the right*/
			#sidebar-alt {
				float: right;
				padding: 30px;
			}
		</style>
	<?php endif; }} 
// Hook into action
add_action('wp_head','cbox_alt_sidebar_css');