.ancestors *效果

<!DOCTYPE html>
<html>
<head>
<style>
.ancestors *

display: block;
border: 2px solid lightgrey;
color: lightgrey;
padding: 5px;
margin: 15px;
}
</style>
<script src="/jquery/jquery-1.11.1.min.js">
</script>
<script>
$(document).ready(function(){
  $("span").parent().css({"color":"red","border":"2px solid red"});
});
</script>
</head>
<body>


<div class="ancestors">
  <div style="500px;">div (曾祖父)
    <ul>ul (祖父)  
      <li>li (直接父)
        <span>span</span>
      </li>
    </ul>   
  </div>


  <div style="500px;">div (祖父)   
    <p>p (直接父)
        <span>span</span>
      </p> 
  </div>
</div>


</body>
</html>
原文地址:https://www.cnblogs.com/baiduligang/p/4247247.html