body{
  /* background-image: linear-gradient(to bottom, red, green, blue); */
  background-image: url('assets/forest2.jpg');
  background-repeat: no-repeat;
  background-size: cover;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  /* cursor:crosshair; */
}

#canvas1{
  position: absolute;
  top: 0;
  left:0;
  width: 100%;
  height: 100%;
  cursor: crosshair;
}

#collisionCanvas{
  opacity: 0;
  cursor: crosshair;
}

#menu{
  position: absolute;
  width: 100vw;
  height: 100vh;

  /* background-image: url('assets/forest1.jpg'); */
  background-repeat: no-repeat;
  background-size: cover;
  z-index: 999;

}

.easy, .medium, .hard{
  position: relative;
  width: 150px;
  height:40px;
  color: blue;
  font-weight: bold;
  display: block;
  margin-bottom: 30px;
  border-radius: 10px;
  background-color: tomato;
  top: 50%;
  left:50%;
  transform: translate(-50%, -50%);
}