* {
    margin: 0;
    padding: 0; 
    box-sizing: border-box;
}
body {
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(to bottom, lightblue, darkblue);
}
.container {
    width: 800px;
    height: 500px;
}
#canvas1 {
    width: 800px;
    height: 500px;
    border: 4px solid black;
    background: linear-gradient(to bottom, lightblue, darkblue);
}

article {
  font-family: monospace;
  color: white;
  width: 100%;
  color: black;
  font-size: 20px;
  text-shadow: 1px 1px 1px #737373; 
  background: darkblue;
  left: 0;
  top: 0;
  width: 100%;
  text-align: center;
  height: 30px;
  line-height: 30px;
  padding-right: 20px;
}
article span, article span > a {
  color: white;
}

footer {
  font-family: monospace;
  position: absolute;
  width: 100%;
  color: white;
  font-size: 15px;
  text-shadow: 1px 1px 1px #737373; 
  background: rgba(0,0,0,0.5);
  left: 0;
  bottom: 0;
  width: 100%;
  text-align: center;
  height: 30px;
  line-height: 30px;
  padding-right: 20px;
}
footer a{
  color: white;
}