i just wanna share on current workaround that’s possible for you (to add on top of Craig’s . there’s a few sort of ready way for you to do so.
- use obsidian columns plugin (there’re two – tnichols217/obsidian-columns and ckRobinson/multi-column-markdown. which you can use it to create columns and then place callout in those columns
- alternatively, without plugin, you can make use of my css snippets here Modular CSS Layout - Obsidian Forum