html, body.CategoryID4 {
  background: rgb(0,0,0) url(http://d26hhearhq0yio.cloudfront.net/content/misterspex-fr/fonds-ecran/lunettes-de-soleil.jpg) no-repeat top center;
}
#NewsletterSubmit.button.affiliate a,
#NewsletterSubmit.button.affiliate span {
  background:#ffffff url(../img/button-topseller.png) no-repeat !important;
  font-size:10px;
}

#NewsletterSubmit.button.affiliate a {
  padding: 0 15px 0 0;
  background-position:0 -323px !important;
}

#NewsletterSubmit.button.affiliate span {
  padding: 9px 27px 11px 15px;
  line-height: 24px; /* remove */
  background-position:0px -323px !important;
}