@namespace url(http://www.w3.org/1999/xhtml);
@-moz-document domain("tumblr.com") {

.new_post_label .new_post_label_icon {
background-image: url('http://data.sainet.co.uk/medigel/post_icons/design/post_icons_legion.png') !important;
background-size: 513px 190px !important;
}

}