<body>
  <ul class="list1">
    <li class="list_1">내용1_1</li>
    <li class="list_2">내용1_2</li>
    <li class="list_3">내용1_3</li>
  </ul>
  <ul class="list2">
    <li class="list bg">내용2_1</li>
    <li class="list_1">내용2_2</li>
    <li class="list_2">내용2_3</li>
  </ul>
  <ul class="list3">
    <li class="list">내용3_1</li>
    <li class="list-1">내용3_2</li>
    <li class="list-bg">내용3_3</li>
  </ul>
  <ul class="list4">
    <li class="list_list">내용4_1</li>
    <li class="list_list-1">내용4_2</li>
    <li class="list_list-bg">내용4_3</li>
  </ul>
</body>
li {
  margin: 5px;
}
$(document).ready(function(){
  $(".list1 > li[class='list_1']").css("border", "2px solid red");
  $(".list1 > li[class!='list_1']").css("border", "2px solid orange");
  $(".list2 > li[class~='list']").css("background", "yellow")
  $(".list2 > li[class*='list']").css("border", "2px solid green");
  $(".list3 > li[class|='list']").css("border", "2px solid blue");
  $(".list4 > li[class^='list']").css("border", "2px solid navy");
  $(".list4 > li[class$='bg']").css("background", "purple")
  
});

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.1/jquery.min.js