.cursor {
  width: 50px;
  height: 50px;
  border-radius: 100%;
  mix-blend-mode: exclusion;
  background: #ffff;
  opacity: 1;
  position: fixed;
  transform: translate(-50%, -50%);
  pointer-events: none;
  transition: width 0.3s, height 0.3s, opacity 0.3s;
  z-index: 999;
}