.demo-btn {
  background: #1ed760;
  color: #000;
  border: none;
  border-radius: 12px;
  padding: 0.85rem 0.9rem;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  width: 100%;
  display: block;
  font-family: inherit;
  text-decoration: none;
  text-align: center;
}

.demo-btn:hover {
  filter: brightness(1.03);
}