a.floating-whatsapp {
    display: none;
}<a href="https://wa.me/5511959027012?text=Loja Omoplata" target="_blank">
    <i class="fa fa-whatsapp" aria-hidden="true"></i>
  </a>righat:10px;
  
#cabecalho .logo img {
    position: relative;
    max-height: 60px;
    margin: 70px auto 10px;
    padding: 0 15px;
    -o-object-fit: scale-down;
    object-fit: scale-down;
    box-sizing: border-box;
    max-height: 500px;
edia screen and (max-width: 767px)
#cabecalho .logo>a {
    right: 500px;
    height: auto;
    text-align: center;
    .logo a img {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 600px;
    right: 100x100;
    max-height: 100%;
}