styles.css

@import url('https://fonts.googleapis.com/css?family=Orbitron');

body {
  text-align: center;
  font-family: 'Orbitron', sans-serif;
  color: #CEECF5;
  background: black;
}

aside {
  padding: 10px 10px 10px;
  width: 0.5%;
  min-height: 70vh;
  height: auto;
  max-height: 80vh;
  box-shadow: 0 0 7px white;
  position: fixed;
  background-color: rgba(16,16,16,.7);
  right: 0;
  top: 10%;
  z-index: 15;
  overflow: hidden;
  -webkit-touch-callout: none;
    -webkit-user-select: none;
     -khtml-user-select: none;
       -moz-user-select: none;
        -ms-user-select: none;
            user-select: none;
}

aside:hover {
  width: 10%;
  color: white;
}

p#credit {
  position: absolute;
  border: none;
  color: grey;
  margin: 5px 1px 5px;
  font-size: xx-small;
  padding: 0;
  bottom: 0;
  cursor: default;
  z-index: -1;
}

p#credit:hover {
  color: cyan;
  background-color: transparent;
}

aside p {
  display: block;
  border-radius: 10px;
  border: 2px solid transparent;
  text-align: center;
  margin-bottom: 10px;
  margin-top: 0;
  padding: 5px;
  font-size: 2.5vh;
}

aside p:hover {
  border: 2px solid rgba(0,0,255,.5);
  background: rgba(0,0,0,.5);
  cursor: pointer;
}

aside p:active {
  border: 2px solid rgba(0,255,255,.5);
}

input {
  width: 80%;
  border-radius: 5px;
  background: black;
  margin-top: 0;
  margin-left: 10px;
  margin-right: 10px;
  max-width: 90%;
  color: white;
  border: none;
  text-align: center;
  font-size: 2vh;
  margin-bottom: 10px;
}

canvas {
  background: black;
  padding: 0;
  margin: auto;
  display: block;
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10;
}