Template:Better tabber
This is tabber, but without javascript so it's actually worse.
The source is generated by a lua module. On the template itself, note some of the drawbacks of the template such as it clogging up your history, tabs not scrolling, not working with nesting, harder to css in certain cases, etc.
{{Better tabber|nt=2|h1=Tab 1|c1=Content|h2=Tab 2|c2=content|id1=the|customcss=false}}