.thankyou-section{
  background-size: cover;
  width: 100%;
  height:100vh; margin-top:60px;
  position: relative;
  overflow: hidden;
}

/* .thankyou-section .thankyou-image {
  background-size: cover;
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
} */
.thankyou-section .thankyou-image {
  background-size:cover;
  width: 100%;
  height:100%;
  display: block;
  object-fit:cover;
  object-position: left top;
}

.back-home-btn { position:absolute; bottom:100px; left: calc(50% - 62px);
  padding: 12px 16px; display:inline-block; z-index:9;
  border-radius: 6px;
  background: #A07644; 
  color: white;
  font-size: 16px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition:0.3s ease-in-out;
}
.back-home-btn:hover{ background-color:#9a6527; }
@media(max-width:575px){
  .thankyou-section { background: rgba(0, 0, 0, .8); height: calc(100vh - 60px); }
  .thankyou-section .thankyou-image { object-fit:contain; }
}