html body {
  margin: 0;
  overscroll-behavior-y: none;
  min-width: 816px;
  background:
    radial-gradient(black 15%, transparent 16%) 0 0,
    radial-gradient(black 15%, transparent 16%) 8px 8px,
    radial-gradient(rgba(255,255,255,.1) 15%, transparent 20%) 0 1px,
    radial-gradient(rgba(255,255,255,.1) 15%, transparent 20%) 8px 9px;
    background-color:#282828;
    background-size:16px 16px;
}

header {
  /* position: absolute; */
  padding: 10px;
  height: 100px;
  width: 776px;
  left: 0;
  right: 0;
  margin: auto;
  background-color: grey;
  border-radius: 0 0 15px 15px;
}

canvas {
  position: absolute;
  left: 0;
  right: 0;
  margin: auto;
  border: 1px solid silver;
  border-radius: 15px;
}

footer {
  padding: 10px;
  height: 100px;
  width: 776px;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  background-color: grey;
  border-radius: 15px 15px 0 0;
}


.fab {
  color: silver;
  text-decoration: none;
  font-size: 35px;
  float: right;
  margin: 65px 5px 0 5px;
}

.fab:hover{
  color: white;
  cursor: pointer;
}

#logo {
  margin-top: 5px;
  margin-left: 10px;
}

#game-container {
  position: relative;
  margin: 20px;
  height: 704px;
}

#menu-canvas {
  z-index: 4;
}

#sprite-canvas {
  z-index: 3;
}

#map-canvas {
  z-index: 2;
}

#collision-canvas {
  z-index: 1;
}

#canvas-underlayer {
  background-color: black;
  height: 696px;
  width: 768px;
  position: absolute;
  left: 0;
  right: 0;
  margin: auto;
  border: 1px solid silver;
  border-radius: 15px;
}