我不确定我是否正确理解了问题，但据我所知，有两种可能的解决方案，它们都包括使用'my_own_css_class'

1. CSS方法

<div class="hoverable-element">元素1</div>
<div class="hoverable-element">元素2</div>
<div class="hoverable-element">元素3</div>

.hoverable-element {
  /* 无 */
}

.hoverable-element:hover {
  /* 重新着色 */
}

2. JavaScript方法

<div class="hoverable-element-js">元素1</div>
<div class="hoverable-element-js">元素2</div>
<div class="hoverable-element-js">元素3</div>

.hoverable-element-js {
  /* 无 */
}

.hover-effect-js {
  /* 重新着色 */
}

const elements = document.querySelectorAll('.hoverable-element-js');

elements.forEach(element => {
  element.addEventListener('mouseover', () => {
    element.classList.add('hover-effect-js');
  });

  element.addEventListener('mouseout', () => {
    element.classList.remove('hover-effect-js');
  });
});