style.css

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    margin: 0px;
}
.canvas_bg {
    background-image: url(images/background-image.png);
    background-repeat: no-repeat;
    background-size: cover;
    width: 100%;
    height: 100%;
}
canvas {
    position: fixed;
    top: 0;
    left: 0;
    display: block;
    background: transparent;
    display: block;
    width: 100%;
    height: 100%;
}
#controls_container {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 2;
}
.controls {
    font-size: 1.9rem;
}
.controls img {
    height: 1.9rem;
}
.menu {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.5);
    padding: 20px;
    text-align: center;
    border-radius: 10px;
    z-index: 100;
}
.menu h2 {
    color: white;
}
.menu p {
    color: white;
}
.arrow_text img {
    height: 30px;
}
.menu button {
    margin: 10px;
    padding: 10px 20px;
    font-size: 16px;
    cursor: url(images/cursor.png), pointer;
}
.hide {
    display: none;
}
#joystickContainer {
  position: fixed;
  bottom: 1%;
  right: 1%;
  z-index: 200;
  width: 150px;
  height: 150px;
}