W3Schools Tryit 编辑器 - W3Schools 中文教程

<!DOCTYPE html>
<html>
<head>
<style>
.ancestors * { 
  display: block;
  border: 2px solid lightgrey;
  color: lightgrey;
  padding: 5px;
  margin: 15px;
}
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
  $("span").closest("ul").css({"color": "red", "border": "2px solid red"});
});
</script>
</head>

<body class="ancestors">body (great-great-grandparent)
  <div style="width:500px;">div (great-grandparent)
    <ul>ul (second ancestor - second grandparent) 
      <ul>ul (first ancestor - first grandparent)
        <li>li (direct parent)
          <span>span</span>
        </li>
      </ul>
    </ul>   
  </div>
</body>

</html>