.u-btn-3 {
    letter-spacing: 1px;
    background-image: none;
    text-transform: uppercase;
    font-size: 1rem;
    margin: -50px -110px auto auto;
    padding: 10px 50px 10px 50px;
    -ms-transform: rotate(90deg);
    transform: rotate(90deg);
    white-space: nowrap;
    right:-103px;
    font-family: 'Mulish';
    top: 530px;
	position:sticky;
	z-index:99;
} 
@media (max-width: 991px) {
 .u-btn-3 {
     right:-17px;
     top:276px;
     padding: 10px 10px 10px 10px;
  }
}
@media (max-width: 825px) {
 .u-btn-3 {
      right:-102px;
      top:467px;
      padding: 10px 50px 10px 50px;
  }
}

@media (max-width: 575px) {
 .u-btn-3 {
      margin-top: -47px;
      padding: 10px 20px 10px 40px;
      right:-80px;
      top:355px;
      
  }
}