MediaWiki:Commons.css

#content { margin-left: 450px} 
#p-logo a, #p-logo a:hover { width: 400px }

.portlet { width: 400px } 

#p-cactions { left: 400px }

<br> 

#column-one .dtree { position: relative; z-index: 25; width: 400px } 
#p-navigation, #p-tb h5, #p-tb .pBody { display:none }

#p-search {

width: 400px; position: relative; z-index: 3; padding: 5px 10px; margin: 0; } 

#searchInput {

width: 280px; margin: 0 0 2px 0; }