html {
  height: 100%;
  width: 100%;

  h1 {text-align: center;
      font-size: 55px;
     }
body {
background-color: #e4f5fb;
}
button {
  border-radius: 12px;
  background-color: #90fe9d;
  font-size: 30px;
  transition-duration: 0.4s;
}
  button:hover {
    background-color: #9feaea;
    color: black;
  }
  h1 {color: #a55596;}
h2 {
  text-align: center;
  font-size: 20px;
}

  body {text-align: center;}
}