Absolutely…. generally page elements like quotes, info boxes, image styles, and even custom content in a WordPress site (theme) is added to a post or page using a WordPress thing called Shortcodes. I opted out of doing shortcodes, instead using HTML code snippets. So things that my demo site has like the content layout for the “Our Team” page, is provided to the user in the form of an html snippet that you simply copy & paste into your page, then replacing the sample content and images (if any) with your own. Think of these as mini-templates that you can use to make things a bit easier (hopefully).
Another example of how these are used is for example, getting the different list styles….when you make a list in your post or page, but want something other than the default style, my shippets are there to let you get a starting point because they contain the class already embedded. So you copy and paste the code for a list style into your page, replace the content, and you’re done.