HTML Course Checklist
Created by Cheli
Step‑by‑step guide to learn and apply HTML fundamentals.
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Checklist Items (23)
Set Up Development Environment
Install a code editor (e.g., VS Code)
Download from https://code.visualstudio.com/ and install extensions for HTML syntax highlighting.
Install a modern browser for testing
Use Chrome or Firefox to render pages and access developer tools.
Learn HTML Basics
Understand the basic document structure
Start with <!DOCTYPE html>, <html>, <head>, and <body> tags.
Learn the purpose of DOCTYPE
DOCTYPE tells the browser which HTML version to use; always use <!DOCTYPE html> for HTML5.
Work with Text and Formatting Tags
Use headings (h1-h6) to structure content
Headings create hierarchy; use only one h1 per page.
Add paragraphs with <p>
Wrap blocks of text in <p> elements for semantic meaning.
Apply emphasis with <strong> and <em>
<strong> indicates strong importance; <em> indicates stress emphasis.
Insert block quotes and inline quotations
Use <blockquote> for longer quotes and <q> for short, inline quotations.
Create Lists and Links
Build ordered (<ol>) and unordered (<ul>) lists
Use <li> for list items; choose ordered for steps, unordered for generic groups.
Create description lists with <dl>, <dt>, <dd>
Ideal for terms and definitions, such as glossaries.
Add hyperlinks using <a>
Set href attribute to target URL; use target="_blank" cautiously with rel="noopener".
Add Images and Multimedia
Insert images with <img>
Provide src, alt text for accessibility, and width/height attributes.
Embed audio and video using <audio> and <video>
Include controls attribute and multiple source formats for compatibility.
Make media responsive with srcset and sizes
Use srcset to serve different resolutions based on device pixel ratio.
Build Forms
Wrap form controls in <form>
Specify action (where to send data) and method (GET or POST).
Use appropriate input types (text, email, password, etc.)
Choosing correct type improves validation and user experience.
Label each input with <label>
Associate via for/id or wrap input inside label for accessibility.
Add client‑side validation attributes
Use required, minlength, pattern, and type‑specific attributes for basic validation.
Use Semantic HTML and Accessibility
Apply semantic sectioning elements
Use <header>, <nav>, <main>, <section>, <article>, <aside>, <footer> to define page structure.
Add ARIA roles and properties when needed
Use roles like banner, navigation, main; prefer native semantics first.
Ensure keyboard navigability and focus management
Make sure interactive elements are reachable via Tab and have visible focus indicators.
Test, Debug, and Publish Your HTML
Validate markup with the W3C validator
Run your page through https://validator.w3.org/ to catch syntax errors.
Deploy to a static hosting service
Upload files to GitHub Pages, Netlify, or Vercel for public access.