body {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  background-color: brown;
}

button {
  margin: auto;
  width: 200px;
  padding: 32px;
  display: block;
  border-radius: 100px;
  border: none;
  font-size: 2em;
  color: white;
  margin-top: 20px;
  background-color: rgb(192, 192, 8);
}

button:hover {
  width: 204px;
  border-radius: 44px;
  background-color: rgb(212, 212, 18);
  cursor: pointer;
}

div {
  font-size: 3.2em;
  text-align: center;
  margin: 50px 0;
  color: white;
}

/* Since stopwatch was built "mobile-first", this media query ensures the display is bigger on wider screens */
@media screen and (min-width: 512px) {
  div {
    font-size: 8em;
  }
}