body {
  width: 100vw;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0;
}

button {
  background-color: transparent;
  border: none;
}

@media only screen and (max-width: 800px) {
  img {
    width: 100%;
  }
}