按钮模版：btn-light-6

<div class="container">
  <button class="btn-light-6"><span>View Room</span></button>
</div>

.container {
  display: flex;
  justify-content: center;
  align-items: center;
  background: #fff;
  width: 100%;
  height: 200px;
}
.btn-light-6 {
  position: relative;
  width: 120px;
  height: 48px;
  line-height: 48px;
  padding: 0;
  color: #fff;
  background: linear-gradient(
    0deg,
    rgba(255, 151, 0, 1) 0%,
    rgba(251, 75, 2, 1) 100%
  );
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}
.btn-light-6 span {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
}
.btn-light-6:before,
.btn-light-6:after {
  position: absolute;
  content: "";
  right: 0;
  bottom: 0;
  background: rgba(251, 75, 2, 1);
  box-shadow: -7px -7px 20px 0px rgba(255, 255, 255, 0.9), -4px -4px 5px 0px
      rgba(255, 255, 255, 0.9), 7px 7px 20px 0px rgba(0, 0, 0, 0.2), 4px 4px 5px
      0px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
}
.btn-light-6:before {
  height: 0%;
  width: 2px;
}
.btn-light-6:after {
  width: 0%;
  height: 2px;
}
.btn-light-6:hover {
  color: rgba(251, 75, 2, 1);
  background: transparent;
}
.btn-light-6:hover:before {
  height: 100%;
}
.btn-light-6:hover:after {
  width: 100%;
}
.btn-light-6 span:before,
.btn-light-6 span:after {
  position: absolute;
  content: "";
  left: 0;
  top: 0;
  background: rgba(251, 75, 2, 1);
  box-shadow: -7px -7px 20px 0px rgba(255, 255, 255, 0.9), -4px -4px 5px 0px
      rgba(255, 255, 255, 0.9), 7px 7px 20px 0px rgba(0, 0, 0, 0.2), 4px 4px 5px
      0px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
}
.btn-light-6 span:before {
  width: 2px;
  height: 0%;
}
.btn-light-6 span:after {
  height: 2px;
  width: 0%;
}
.btn-light-6 span:hover:before {
  height: 100%;
}
.btn-light-6 span:hover:after {
  width: 100%;
}