: @namespace url(http://www.w3.org/1999/xhtml); @-moz-document url-prefix('http://www.tumblr.com/') { #logo {height: 0 !important; width: 0 !important; padding-left: 240px !important; padding-top: 70px !important; background: url(http://i55.tinypic.com/35k2agm.png) no-repeat !important;}}