body {
  background-color: #131313;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Creepster", cursive;
}

body,
html {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
}

#demo {
  visibility: hidden;
  text-align: center;
}

h1 {
  color: white;
  letter-spacing: 6px;
  margin: 0;
  font-size: 16vw;
  font-weight: 400;
  flex: 1;
  align-self: flex-end;
}

button {
  border-radius: 10px;
  background: #fc3;
  color: #06c;
  font-size: 14px;
  padding: 10px;
  border: none;
  font-weight: bold;
}
button:focus {
  outline: none;
}