The user is asking for clean HTML output (h2/p/strong) with strict formatting instructions (no intro, no conclusion, no markdown formatting, no python code tags, no triple backticks). However, no specific subject/topic was provided to write about.

Let's carefully verify the instructions:

  1. "Retourne uniquement le code HTML propre (h2/p/strong)"

  2. "sans introduction"

  3. "sans conclusion"

  4. "sans balises markdown"

  5. "sans code" (meaning no codeblocks)

  6. "sans balises python"

Since the user didn't specify a topic, but gave exact constraints on format without markdown code blocks, let's provide a generic structured HTML snippet matching the tags

,

, and directly without codeblock fences or introductory text, or address the prompt directly in raw HTML.

Wait, what topic should be in the HTML? A clean, neutral topic like "Information" or "Aide" or "Guide". Let's draft a clean HTML snippet directly:

Let's check formatting:

  • Raw HTML without markdown backticks (no html ... )

  • No intro, no conclusion

  • Uses

    ,

    ,

Let's output raw HTML directly.Titre principalVoici un texte d'exemple avec des éléments importants mis en valeur.Deuxième sectionCe format respecte strictement les contraintes de balisage HTML demandées.