html {
  scroll-behavior: smooth;
}

.back-to-top-wrap {
  padding: 3rem 1rem 0;
  text-align: center;
}

.back-to-top-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #222222;
  /*background: #1b5f70;*/
  border: 1px solid #1b5f70;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  padding: .75rem 1.25rem;
}

.back-to-top-btn:hover, .back-to-top-btn:focus {
  color: #fff;
  background: #164d5b;
  border-color: #164d5b;
}