如何创建行为类似于窗口的工具提示？

<button data-tooltip="这是一个按钮">按钮</button>

[data-tooltip] {
  position: relative;
  display: inline-block;
}

[data-tooltip]::before {
  content: attr(data-tooltip);
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background-color: #333;
  color: #fff;
  padding: 5px;
  border-radius: 5px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

[data-tooltip]:hover::before {
  opacity: 1;
  visibility: visible;
}

const tooltips = document.querySelectorAll('[data-tooltip]');

tooltips.forEach((tooltip) => {
  tooltip.addEventListener('mouseenter', () => {
    tooltip.setAttribute('aria-describedby', 'tooltip');
  });

  tooltip.addEventListener('mouseleave', () => {
    tooltip.removeAttribute('aria-describedby');
  });
});