HTML
The skeleton of every web page.
What is HTML?
HTML (HyperText Markup Language) defines the structure of a web page — headings, paragraphs, buttons, images. Every website is ultimately HTML. Vibe coding tools generate it for you, but knowing what it is helps when reading error messages.
HTML uses tags wrapped in angle brackets: <h1> for headings, <p> for paragraphs, <button> for buttons. The browser reads these tags and displays the visual elements.
In Vibe Coding
When Lovable or Cursor generates a button or a heading, it's writing HTML underneath. You almost never write HTML directly in vibe coding — the AI handles it. But understanding that everything on screen is HTML helps when debugging.
Example
For example: When your page has a heading, the HTML is <h1>Welcome to My App</h1>. When it has a button, it's <button>Click Me</button>. The browser reads these tags and shows the visual elements.