body {
  margin: 0;
  padding: 0;
}
canvas {
  margin: auto;
  display: block;
  padding: 0;
  background: #a3bfd9;
}

.arrow-left,
.arrow-up,
.arrow-right,
.shoot {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  font-size: 2rem;
  color: #333;
  background-color: rgba(254, 215, 102, 0.3);
  padding: 1rem 2rem 1rem;
  position: absolute;
  border: transparent;
  border-radius: 10px;
  margin: 0;
  text-align: center;
}

.arrow-left {
  bottom: 40px;
  left: 30px;
}

.arrow-right {
  bottom: 40px;
  right: 30px;
}

.arrow-up {
  bottom: 130px;
  left: 30px;
}

.shoot {
  bottom: 130px;
  right: 30px;
}

.active {
  background-color: rgba(254, 215, 102, 0.6);
}