To add more essence to your text content, you can add a background image. The background image you want to add must be available on the web. If the background image is on your local device, you can upload it to the Drive and utilize the image URL.

Solution

1. Go to Settings -> Knowledge base site -> Custom CSS & JavaScript, and Custom CSS

2. Paste the below CSS snippet in the window

.bgimg 
{ 
background-image: url("IMAGE_URL"); 
} 

3. In the above snippet:

   • Class name is .bgimg. You can replace it as per the requirement
   • IMAGE_URL - Add your desired background image URL

4. Click Save

5. Navigate to the desired article and add the snippet in the editor:

<p class="bgimg">Text_content</p> 

• Text_content - Add the desired text content
• bgimg - If you change the class name, replicate the same changes in this field

6. The desired background image appears for the text content in your knowledge base