.element-desktop{
    display:block;
} 
.element-mobile{
    display: none;
  }
 @media (max-width: 480px) {
   .element-mobile{
    display: block;
  }
  .element-desktop{
    display: none;
}
.banner-mercurio{
        width: 80% !important;
    margin: 0 auto !important;
    margin-top: 30px !important;
}
a.btn.bg_ocre.pull-left.hidden-xs.btn-ptrensa {
    display: block !important;
    width: 100%;
}
}