* {
  box-sizing: border-box; }

htm, body {
  margin: 0;
  padding: 0; }

img {
  float: left;
  margin-right: 2em;
  width: 50vw;
  height: 100vh; }

div {
  padding: 2em; }

h1 {
  margin-top: 0;
  font-size: 6vw; }

footer {
  text-align: center; }