[QUESTION] How to create custom block made of grapesjs components?

You should be able to do something like this:

...
components: [
  { tagName: 'h1', components: 'Some <b>content</b>', },
  '<style>....</style>'
]

@artf thanks it works, but i found bug there.

When you drop this block on canvas it works ok, but if you delete this element from canvas or clear whole canvas, then drop this block on canvas 2nd time, it will lose css. 2nd time, 3rd time.. doesnt matter, If you removed element from canvas once, it will lose style for next drops.

@makkaronis4e for such a case, I'd ask you a reproducible demo, please