* {
    margin: 0;
    padding: 0;
  }

html, body, canvas {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

div {
    width: 100%;
    height: 100%;
}


/* Advertisement modal */
#advertisementModal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity 0.5s ease;
}

#advertisementModal.show {
  opacity: 1;
}

.modal-content {
  background-color: white;
  padding: 20px;
  border-radius: 5px;
  text-align: center;
}