body, button {
  font-family: 'Karla', sans-serif;
}

span {
  font-family: 'Roboto Mono', monospace;
}

th, td {
  margin-right: 20px;
}

.container {
  width: 60%;
  display: block;
  margin: 70px auto;
}

.button {
  border: none;
  border-radius: 7px;
  color: #fff;
  background: #3385ff;
  padding: 10px;
}

.result {
  font-size: 50px;
}