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HTML and CSS Advanced

This advanced course covers essential techniques for creating web page layouts, managing CSS, and validating both HTML and CSS. Learn how to create navigation menus, incorporate multimedia, and ensure your website adheres to web standards. Explore free tools for validating HTML and CSS markup, identify common mistakes such as typos and missing punctuation, and understand the implications of improper syntax. Gain hands-on experience through practice activities designed to strengthen your validation skills and improve overall website quality.

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HTML and CSS Advanced

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  1. Neal Stublen nstublen@jccc.edu HTML and CSS Advanced

  2. Course Road Map • Create web page layouts using CSS • Manage CSS • Test website validity • Create navigation menus using CSS • Incorporate meta content and multimedia

  3. Chapter 3:Testing a Website

  4. What’s Ahead? • Test HTML markup • Test CSS

  5. Validating HTML Markup • Free service for validating page markup • http://validator.w3.org/ • Specify a URL • Upload a file • Paste HTML

  6. Practice Activity • Validating Markup, Activity 1 • Validate page markup (p.68)

  7. Validating CSS • Free service for validating CSS • http://jigsaw.w3.org/css-validator/ • Specify a URL • Upload a file • Paste HTML

  8. Practice Activity • Validating CSS, Activity 2 • Validate CSS content (p.74)

  9. Common Mistakes • Missing “punctuation” • Semicolons • Braces and brackets • Typos • Mismatched elements • <div><p></div> (missing </p>)

  10. Validator Limits • Ignores styling section • Does not validate links • Does not account for use of JavaScript • JavaScript may use undefined attributes • JavaScript may alter styles

  11. What Does It Mean? • Reveals improper syntax • But browsers are very forgiving • If you’re using other tools to generate your web pages, you may not be able to resolve all the errors it reports • Look at other sites – no one is perfect! • http://google.com • http://microsoft.com

  12. What’s Behind? • Test HTML markup • Test CSS

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