body {
  background: url('images/background.png');
  display: flex;
  align-items: center;
  justify-content: center;
  text-align:center;
}
input, button {
  font-size: 20px;
  padding: 15px;
  border-radius: 15px;
  border: none;
}
button {
  color: white;
  background: black;
}

p {
  background: white;
  width: 230px;
  padding: 5px;
  border-radius: 50px;
  margin: 20 auto;
}

img { 
  width: 100%; 
  max-width: 500%; 
}

@media (min-width: 600px) {
  body {
    flex-direction: row;
    flex-wrap: wrap;
  }
  
  div {
    flex: 1;
  }

  img {
    width: 45%;
  }
}