.bg {
  position: fixed; 
  top: -50%; 
  left: -50%; 
  width: 200%; 
  height: 200%;
}
.bg img {
  position: absolute; 
  top: 0; 
  left: 0; 
  right: 0; 
  bottom: 0; 
  margin: auto; 
  min-width: 50%;
  min-height: 50%;
}

body{
  margin: 0 0 0 0;
  padding: 0 0 0 0;
  cursor: url(custom_cursor.png),auto;
}

.handwriting{
  visibility: hidden;
  opacity: 0;
  transition: visibility 5ms , opacity 500ms;
}