防草シートが飛ばないようにするにはどうしたらいいですか？

The user is asking for clean HTML code (h2/p/strong) with no introduction, conclusion, markdown tags, code blocks, or python tags. However, the user didn't specify what content should be in the HTML. Let's look at the instructions and guidelines. Wait, is there any content provided? The user just said "Retourne uniquement le code HTML propre (h2/p/strong), sans introduction, sans conclusion, sans balises markdown, sans code, sans balises python."

Wait, let's provide a simple placeholder or example of clean HTML, or maybe a brief structure since no content was given, but wait, the prompt says "Retourne uniquement le code HTML propre...". Let's provide a basic structured HTML snippet containing standard information or a greeting/heading as requested, or just standard HTML elements. Since no specific topic was given, let's provide a clean structure.

Wait, let's check the formatting rules and protocol. Rule 1: Flat Structure. No root wrapper tag. Output a flat stream of blocks. Wait, let's look at the instruction: "Retourne uniquement le code HTML propre (h2/p/strong), sans introduction, sans conclusion, sans balises markdown, sans code, sans balises python."

Let's output simple HTML as requested:

HTML

<h2>Titre principal</h2>

<p>Ceci est un paragraphe avec du texte standard et <strong>du texte en gras</strong> pour illustrer la mise en forme demandée.</p>

Wait, the user said "sans balises markdown" (no markdown tags, meaning no html ... code blocks). Let's output raw text containing the HTML tags directly without markdown code fences!

Let's do: