Create style or slide template to better support slides with images

I'm creating a set of training slides on Lektor, but I'm having some formatting issues like adding images and alignments.

As a good practice, we try to avoid mixing markdown content and HTML, because translators can get confused.

Having some slide templates for slides with images could be very helpful, for example, could be a template with text on left and image on right, and image aligned on left and text on a right column.

Example:

• Training slides that I'm working on: All about Tor