Check out how Tranquilpeak theme display well HTML elements (title, paragraph, blockquote, table and more..). It’s simple and elegant.
Tranquilpeak Hugo theme have its own theme to highlight source code. It’s based on GitHub theme: simple and elegant. Check out how it sublimate source codes.
This post is used to show how tag plugins are displayed. See docs for more info.
Youtube and Vimeo videos are easily integrated thanks to tags plugins. Of course, you can add video other platforms like dailymotion.
And here is the image gallery!