body {
  line-height: 2em;
}
button {
  margin-top: 10px;
  height: 30px;
  background-color: rgb(3, 3, 160);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 1.2rem;
}
button:hover {
  background-color: blue;
}
#container {
  height: auto;
  width: 50vw;
  background-color: rgba(127, 255, 212, 0.116);
  padding: 30px;
  border-radius: 4px;
  display: block;
  margin: 0 auto;
}