body {
  background: black;
  color: #afa;
  font-size: 20px;
}
header {
  text-align: center;
  padding: 5px 0;
  color: #0F0;
}
h1,
h2,
h3 {
  margin: 2px 0;
  font-family: 'Black Ops One';
}
#help {
  padding: 10px;
  width: 600px;
  margin: 20px auto;
  color: #000;
  background: #080;
}
footer {
  text-align: center;
  margin-top: 20px;
  padding-top: 20px;
}
a {
  color: #3f3;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
dt {
  font-weight: bold;
}
#wrapper {
  width: 800px;
  margin: 0 auto;
}
#game {
  position: relative;
  min-height: 300px;
}
#life_indicator {
  position: absolute;
  z-index: 1;
  bottom: 10px;
  right: 10px;
}
#radar {
  position: absolute;
  z-index: 1;
  top: 10px;
  left: 10px;
}
#level {
  position: absolute;
  z-index: 1;
  top: 10px;
  right: 10px;
  font-size: 32px;
  color: #0f0;
  font-family: monospace;
  font-weight: bold;
}
#message {
  position: absolute;
  top: 40%;
  z-index: 2;
  margin: 0 auto;
  width: 100%;
  text-align: center;
  font-size: 40px;
  color: #0f0;
  font-family: monospace;
}