如何在ckeditor插件中提供图像而不是项目符号？

Can anyone tell how to give an image to a bullet in ckeditor ?

I want to put the below content in ckeditor:

<ul class="features_li">
   <li><i class="fa fa-check-square-o"></i>Help him</li>
   <li><i class="fa fa-check-square-o"></i>Be careful of the danger</li>
   <li><i class="fa fa-check-square-o"></i>The stunning</li>
</ul>

I want to put the content in ckeditor with image defined in the class.Can anyone help me on this ?

Check below example

ul,
li {
  list-style: none;
  padding: 0px;
  margin: 0px;
}
ul li i {
  margin-right: 10px;
}

<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.1/css/font-awesome.min.css" rel="stylesheet" />
<ul class="features_li">
  <li><i class="fa fa-check-square-o"></i>Help him</li>
  <li><i class="fa fa-check-square-o"></i>Be careful of the danger</li>
  <li><i class="fa fa-check-square-o"></i>The stunning</li>
</ul>

</div>

In your code, fa fa-check-square-o represents class of the font-awesome font. It permit to include images with adding some class.

See documentation here about adding these classes : https://fortawesome.github.io/Font-Awesome/icons/

Here a live example of your code