I have created a HTML CMS widget to feature several (3 to 4) small banner images on the same line, equally spaced and within the widget. This widget is the entire width of the CMS page. I don't have a clue how to code and make this happen.

If it is a combination of HTML and CSS, where do I add the CSS? I do know the HTML will be in the widget itself.

Again, I am not a coder. If you can help I would need fairly detailed information on how to accomplish this.

Thanks in advance.