style.css

@import url('https://fonts.googleapis.com/css?family=Press+Start+2P');
body ,html{
    background-color: rgba(34, 34, 34, 1);
    height:95vh;
}

h1 {
    color: white;
    text-align: center;
}

h2 {
    font-family: 'Source Code Pro', monospace;
    height:100%;
    width: 100%;
    color: rgba(34, 34, 34, 1);
    position: absolute;
}

p {
    font-family: 'Press Start 2P', cursive;
    font-size: 50px;
    color: white;
}

.center {
    position: relative;
    text-align: center;
    margin: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.enemy {
    position: absolute;
    height:5%;
    width: 5%;
}

#box {
  height:5%;
  width: 5%;
  display:none;
  position:absolute;
}

#enemy {

}

#pane {
  position:relative;
  border:0px solid red;
}