header .header-container .header-logo a {
  background: url(../../img/partner/logo_teleformation.jpg) no-repeat center left;
  background-size: 225px 75px;
  color: transparent;
  margin-bottom: 0;
}
header .header-container .header-logo a img {
  display: none;
}
.header-logo a:after {
  display: none;
}