* {
  font-family: Arial, Helvetica, sans-serif;
}

html, body {
    background-color: blueviolet; /* For browsers that do not support gradients */ /* Standard syntax (must be last) */
    background-image: linear-gradient(red,orange,yellow,green,blue,indigo,violet,indigo,blue,green,yellow,orange,red,orange,yellow,green,blue,indigo,violet,indigo,blue,green,yellow,orange,red,orange,yellow,green,blue,indigo,violet,indigo,blue,green,yellow,orange,red); /* Standard syntax (must be last) */
  }

main {
  margin: auto;
  width: 50%;
  padding: 20px;
}

main > h1 {
  text-align: center;
  font-size: 3.5em;
}

.button {
  display: inline-block;
  padding: 15px 25px;
  font-size: 24px;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  outline: none;
  color: #fff;
  background-color: rgb(68, 202, 255);
  border: none;
  border-radius: 15px;
  box-shadow: 0 9px rgb(185, 158, 0);
}

.button:hover {background-color: #f800d7}

.button:active {
  background-color: #5ecbda;
  box-shadow: 0 5px rgba(175, 129, 1, 0.986);
  transform: translateY(4px);
}