@namespace url(http://www.w3.org/1999/xhtml);

@-moz-document domain("wikipedia.org") {
#column-one,
#siteNotice,
#footer{
display: none !important;
}
#content{
margin:0 20% 0 0 !important;
padding:0 2em !important;
max-width:60em !important;
}
h1, h2, h3, h4, h5, h6 {
border: none !important;
padding-top:1.5em !important;
}
}