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HTML & CSS: The Good Parts

Cover of HTML & CSS: The Good Parts by Ben Henick Published by O'Reilly Media, Inc.
  1. HTML & CSS: The Good Parts
    1. SPECIAL OFFER: Upgrade this ebook with O’Reilly
    2. Preface
      1. The Who and What of This Book
      2. Objectives of This Book
      3. Conventions Used in This Book
      4. Using Code Examples
      5. Safari® Books Online
      6. How to Contact O’Reilly
      7. Acknowledgments
    3. 1. Hypertext at the Core
      1. The Web Without Links
      2. URIs
    4. 2. Working with HTML Markup
      1. HTML Syntax
      2. Rendering Modes, Flavors of HTML, and Document Type Declarations
      3. Beautiful Parts: Universal Attributes
      4. Separating Content, Structure, Presentation, and Behavior
      5. Browsers, Parsing, and Rendering
    5. 3. CSS Overview
      1. Connecting Stylesheets to HTML Documents
      2. Choosing the Elements You Want to Style: Writing Selectors
      3. Rule Conflicts, Priority, and Precedence
      4. CSS Property and Value Survey
      5. CSS Units
      6. Key CSS Layout Properties
    6. 4. Developing a Healthy Relationship with Standards
      1. The Broad Landscape of Web-Related Standards
      2. Why Web Standards?
      3. Taking the Middle Road: Standards-Friendliness
    7. 5. Effective Style and Structure
      1. The Four Habits of Effective Stylists
      2. CSS Zen and the Stylist’s Experience
      3. Information Architecture and Web Usability
    8. 6. Solving the Puzzle of CSS Layout
      1. The CSS Box Model and Element Size Control
      2. Quirks Mode and Strict Mode
      3. auto Values
      4. Margins, Borders, and Padding
      5. Element Flow
      6. Using the display Property to Change an Element’s Flow
      7. The float and clear Properties
      8. Implementing Multicolumn Layouts
      9. CSS Positioning Properties
      10. The visibility and z-index Properties
      11. Obtaining Precise Navigation Source Order and Layout
      12. Layout Types and Canvas Grids
    9. 7. Working with Lists
      1. Ordered and Unordered Lists
      2. Other Uses for Lists
      3. Styling Navigation Elements
      4. Definition Lists
    10. 8. Headings, Hyperlinks, Inline Elements, and Quotations
      1. Headings and Good Writing
      2. Styling Heading Elements
      3. Link Markup
      4. Styling Links
      5. Adding Semantic Value with Inline Elements
      6. Quotations
    11. 9. Colors and Backgrounds
      1. Color Theory and Web Color Practice
      2. CSS Backgrounds
      3. Composing Background Images
      4. Bitmapped Copy and Fahrner Image Replacement
      5. Reducing Server Load with Sprites
    12. 10. (Data) Tables
      1. The Disadvantages of Layout Tables
      2. The Parts of a Data Table
      3. Composing Cells
      4. Table Headers, Footers, and Heading Cells
    13. 11. Images and Multimedia
      1. Replaced Elements
      2. Preparing Images for Production
      3. Image Production
      4. Working with Color Profiles
      5. Image Optimization
      6. Publishing Images
      7. Styling Images and Plug-in Content
      8. Adding Motion and Sound: Using SWFObject to Insert Flash Videos and Presentations
      9. Inserting Unwrapped Multimedia
    14. 12. Web Typography
      1. A Brief History of Letterforms
      2. A Visual Glossary of Typography
      3. Aliasing and Anti-Aliasing
      4. Type Styles, Readability, and Legibility
      5. Sizing Type
      6. Working with Typefaces and Fonts
      7. Character Encoding in Brief
      8. Creating Balanced Type Treatments
      9. Typographical Miscellany in CSS
      10. The Practice of Good Web Typography
    15. 13. Clean and Accessible Forms
      1. Building Effective Forms
      2. Assessment and Structure
      3. Basic Form Structure, Presentation, and Behavior
      4. Prototyping and Layout
      5. Required Fields and Other Submission Constraints
      6. Creating Accessible Forms
      7. Form Features in HTML5
    16. 14. The Bad Parts
      1. The Numbing Nature of Internet Explorer (Especially IE 6)
      2. Systemic Ugliness
      3. HTML’s Bad Neighborhoods and Cul-de-Sacs
      4. CSS Travesties
      5. The Awful Parts
      6. Picking Up the Pieces
    17. A. URIs, Client-Server Architecture, and HTTP
      1. The Underlying Client-Server Architecture
      2. What Every Web Developer Should Know About HTTP
      3. MIME Types, in Brief
      4. Controlling Request Volume
    18. Glossary
    19. Index
    20. About the Author
    21. Colophon
    22. SPECIAL OFFER: Upgrade this ebook with O’Reilly
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Beautiful Parts: Universal Attributes

You’ll be seeing a lot of the class and id attributes throughout this book. These are universal attributes—they can be used by any element in the HTML vocabulary that’s valid as well as body itself.

In addition to class and id, there are four other attributes that are similarly versatile:

  • title

  • lang/xml:lang

  • dir

  • style

dir specifies which direction type should run. style will be described in Chapter 14.

Providing Stylesheet Hooks with class and id

Two attributes that can be assigned to all elements are class and id. Several class values but only one id value can be assigned to a given element. Multiple class values are separated by spaces, e.g., class="alternate callToAction".

Valid class and id values should contain only letters, numbers, hyphens, and underscores. These values should begin only with letters and numbers. However, Internet Explorer 6 parses and applies stylesheet values that are associated with class values, id values, and property names that begin with underscores—an oversight that provides stylists with a low-pass filtering technique.

A more important question is where to put classes and ids. As a rule, classes should be assigned to those frequently encountered elements that share both design purpose and presentation peculiarities, but aren’t used predictably. On many sites, classes are also assigned to the body elements of pages that fall within a single section of the site’s architecture, such as the common “About” and “Contact” sections. ...

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