按钮模版：btn-light-3

<div class="container">
  <button class="btn-light-3">View Room</button>
</div>

.container {
  display: flex;
  justify-content: center;
  align-items: center;
  background: #fff;
  width: 100%;
  height: 200px;
}
.btn-light-3 {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 28px;
  border-radius: 25px;
  background-image: linear-gradient(45deg, #ff0099, #00f1ff);
  background-size: 200%;
  color: #fff;
  transition: all 0.4s ease-in-out;
  border: none;
  cursor: pointer;
}
.btn-light-3:hover {
  background-position: right center;
}