Javascript 除非移动鼠标，否则自定义光标会滚动离开.

const cursor = document.querySelector('.cursor')
document.addEventListener('mousemove', (e) => {
  cursor.setAttribute("style", "top: " + (e.pageY - 60) + "px; left: " + (e.pageX - 60) + "px;")
})

document.addEventListener("click", (e) => {
  console.log(e.target)
  cursor.classList.add('click')

  setTimeout(() => {
    cursor.classList.remove('click')
  }, 500)
})

@import url("https://fonts.googleapis.com/css?family=Montserrat:400,400i,700");
body {
  font-family: Montserrat, sans-serif;
  font-size: 30px;
  background: #000;
  color: #fff;
  cursor: none;
  position: relative;
  min-height: 100vh;
  padding: 0px;
  margin: 0px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

div {
  display: inline-block;
  padding: 20px;
}

.cursor {
  pointer-events: none;
  position: absolute;
  width: 80px;
  height: 80px;
  background: #fff;
  border-radius: 50%;
  mix-blend-mode: exclusion;
  background: radial-gradient(circle, #000 0%, #000 3.99%, #fff 4%, #fff 100%);
}

.cursor.click {
  animation: click .3s ease-in-out;
}

@keyframes click {
  0% {
    transform: scale(1);
  }
  5% {
    transform: scale(1.3);
  }
  100% {
    transform: scale(1);
  }
}

<div class="cursor">
</div>
<h1>Hello world</h1>
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