style.css

/* centering is a nightmare, thank you @wesbos https://github.com/wesbos/keycodes/blob/gh-pages/style.css */
/* Reset */
* {
  margin: 0;
  padding: 0;
}
html, body {
  height: 100%;
  margin: 0;
  background-color: black;
  color: white;
  font-family: 'Cutive Mono', monospace;
  font-size: 30px;
  padding: 10px;
  overflow-y: hidden;
}
.display {
  text-align: center;
  display: table;
  height:100%;
  margin:0 auto;
}
.wrap {
  display: table-cell;
  vertical-align: middle;
  width: 60vw;
}
.footer {
  font-size: 16px;
  position: absolute;
  bottom: 10px;
}
.copy {
  height: 40px;
  cursor: pointer;
  position: absolute;
  right: 10px;
  bottom: 10px;
}
a {
  color: inherit;
  text-decoration: underline;
}
@media only screen and (max-width: 550px) {
  .copy {
    top: 10px !important;
  }
}
@media only screen and (max-width: 800px) {
  body {
    font-size: 20px;
  }
  .wrap {
    width: 80vw;
  }
}