After creating a custom list, I added a column titled "multiple lines of text" with "Enhanced rich text". Then, I proceeded to create a new item and entered HTML source into that column.
Here's an example:
<div class="hdg-container" style="background-image: url(img/home-background-1.jpg) ">
Please note that I prefer not to use an external style sheet for this.
Upon saving the item, I noticed that the background-image style was removed when I opened it. Any assistance would be greatly appreciated.