@namespace url(http://www.w3.org/1999/xhtml);
@-moz-document url-prefix('http://www.tumblr.com/'), url-prefix('https://www.tumblr.com/')  
 {
#logo 
{
width: 208px !important;
height: 55px !important;
background-image: url(http://media.tumblr.com/572a472cc50818c18bf1c0b1979ad601/tumblr_inline_mj81lxV7H21qz4rgp.png)!important;
}
#logo a 
{
background:none !important;
}
}