Although there isn't a direct feature to create borders on Google Docs, there are 3 workarounds that you can use to create that appearance.

You can add a Border to an image in a Google Docs document. Creating and putting a broder is very easy if you follow this procedure.

How an attractive cover page can be added? You can find pre-formatted template and write on them and Google Docs has a lot of templates to make the cover page a really attractive one.

Whether you want to make text stand out, add some structure, or create a unique visual, we’ll show you a few ways to insert a text box in Google Docs.

Learn how to add images captions to Google Docs by reading this guide.