body {
  margin: 0;
  background: #80ff00 url("/img/16x16.png");
  color: #000;
  font-family: Arial, sans-serif;
}

header,
main,
footer {
  box-sizing: border-box;
  width: min(995px, 100%);
  margin: 0 auto;
  background: #fff;
}

header,
footer {
  padding: 16px;
  background: #00ccff;
  text-align: center;
}

main {
  min-height: calc(100vh - 132px);
  padding: 12px;
}

a {
  color: #000;
}

h1 {
  margin: 0 0 12px;
  font-size: 24px;
}

.game {
  display: flex;
  min-height: 600px;
  align-items: center;
  justify-content: center;
  overflow: auto;
  background: #999;
}

object,
embed {
  display: block;
  width: 800px;
  height: 600px;
  max-width: 100%;
}