CodePen Home Button with border-radius and gradient

btn.css

.btn {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 300px;
  height: 50px;
  text-transform: uppercase;
  text-decoration: none;
  padding: 10px;
  color: #000;
  font-size: 25px;
  background:
    linear-gradient(#fff, #fff) padding-box,
     linear-gradient(90deg, rgba(131,58,180,1) 0%, rgba(253,29,29,1) 50%, rgba(252,176,69,1) 100%) border-box;
  border: 5px solid transparent;
  border-radius: 10px;
  transition: all 0.3s;
}
.btn:hover {
  color: #fff;
  background: linear-gradient(90deg, rgba(131,58,180,1) 0%, rgba(253,29,29,1) 50%, rgba(252,176,69,1) 100%) border-box;
}