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Looking at obsolete elements

From: HTML Essential Training

Video: Looking at obsolete elements

HTML5 specifies a number of elements and attributes as obsolete. The specification does not use the word deprecated for these features because browsers must still support them and because they're already in wide use. Instead, they're referred to as obsolete and we're encouraged to stop using them. This is a list of obsolete elements. The functionalities of many of these elements are better accomplished with CSS and others have been replaced with new elements or new features. For example, the applet element has been replaced with the embed and object elements.

Looking at obsolete elements

HTML5 specifies a number of elements and attributes as obsolete. The specification does not use the word deprecated for these features because browsers must still support them and because they're already in wide use. Instead, they're referred to as obsolete and we're encouraged to stop using them. This is a list of obsolete elements. The functionalities of many of these elements are better accomplished with CSS and others have been replaced with new elements or new features. For example, the applet element has been replaced with the embed and object elements.

The frames feature has been replaced with iframe, and many of these features are better accomplished with CSS including basefont, big, blink, center, and font. Like the list of obsolete elements, many of these obsolete attributes are better accomplished with CSS. For example, the name attribute on the a element has a target for URL fragments, is better accomplished with the id attribute which is also used as a unique identifier by CSS. The link, alink, vlink, text and bgcolor attributes on the body element and also in tables are better accomplished with CSS.

The align attribute on many elements is better accomplished with CSS. Cellspacing and cellpadding attributes for the table element along with most table formatting is better accomplished with CSS. A complete list of obsolete features along with rationales and conforming alternative features can be found on the WHATWG website at this URL.

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This video is part of

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HTML Essential Training

82 video lessons · 101348 viewers

Bill Weinman
Author

 
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  1. 5m 24s
    1. Welcome
      56s
    2. Using the exercise files
      1m 37s
    3. What you need to know about this course
      2m 51s
  2. 22m 0s
    1. What is HTML?
      4m 12s
    2. Examining the structure of an HTML document
      7m 50s
    3. Understanding tags and containers
      6m 4s
    4. Exploring content models in HTML5
      2m 23s
    5. Looking at obsolete elements
      1m 31s
  3. 27m 19s
    1. Understanding whitespace and comments
      3m 53s
    2. Displaying text with paragraphs
      3m 37s
    3. Applying style
      8m 5s
    4. Using block and inline tags
      6m 34s
    5. Displaying characters with references
      5m 10s
  4. 16m 36s
    1. Exploring the front matter of HTML
      2m 9s
    2. Applying CSS to your document
      3m 59s
    3. Adding scripting elements
      4m 54s
    4. Using the meta tag
      3m 34s
    5. Optimizing your page for search engines
      2m 0s
  5. 24m 59s
    1. Controlling line breaks and spaces
      2m 46s
    2. Exploring phrase elements
      1m 44s
    3. Using font markup elements
      1m 5s
    4. Highlighting text with mark
      1m 29s
    5. Adding headings
      1m 38s
    6. Using quotations and quote marks
      3m 2s
    7. Exploring preformatted text
      1m 45s
    8. Formatting lists
      2m 28s
    9. Forcing text direction
      3m 49s
    10. Suggesting word-break opportunities
      2m 29s
    11. Annotating East Asian languages
      2m 44s
  6. 29m 15s
    1. Introducing CSS
      55s
    2. Understanding CSS placement
      6m 55s
    3. Exploring CSS syntax
      10m 34s
    4. Understanding CSS units of measure
      3m 3s
    5. Some CSS examples
      7m 48s
  7. 22m 5s
    1. Using images
      4m 13s
    2. Flowing text around an image
      4m 55s
    3. Breaking lines around an image
      3m 3s
    4. Aligning images
      5m 25s
    5. Mapping links in an image
      4m 29s
  8. 22m 28s
    1. Understanding URLs
      2m 41s
    2. Working with hyperlinks
      3m 28s
    3. Using relative URLs
      4m 20s
    4. Specifying a base URL
      2m 19s
    5. Linking within a page
      4m 12s
    6. Using image links
      5m 28s
  9. 17m 2s
    1. Exploring list types
      3m 52s
    2. List elements in depth
      7m 44s
    3. Using text menus with unordered lists
      5m 26s
  10. 15m 30s
    1. Introduction to HTML semantics
      4m 9s
    2. Exploring an example
      4m 56s
    3. Marking up figures and illustrations
      2m 33s
    4. Creating collapsible details
      3m 52s
  11. 11m 18s
    1. Embedding audio
      5m 19s
    2. Embedding video
      5m 59s
  12. 11m 53s
    1. Creating ad-hoc Document Object Model (DOM) data with the data-* attribute
      4m 53s
    2. Displaying relative values with meter
      2m 57s
    3. Creating dynamic progress indicators
      4m 3s
  13. 4m 49s
    1. Overview of HTML5 microdata
      1m 8s
    2. Exploring an example with microdata
      3m 41s
  14. 7m 3s
    1. Understanding outlines
      52s
    2. A demonstration of outlining
      6m 11s
  15. 13m 1s
    1. Table basics
      7m 29s
    2. Exploring the semantic parts of a table
      2m 32s
    3. Grouping columns
      3m 0s
  16. 9m 55s
    1. Frames overview
      54s
    2. Using traditional frames
      4m 26s
    3. Exploring inline frames using iframe
      2m 7s
    4. Simulating frames with CSS
      2m 28s
  17. 53m 7s
    1. Introducing forms
      10m 24s
    2. Using text elements
      10m 12s
    3. Using checkboxes and radio buttons
      2m 37s
    4. Creating selection lists and dropdown lists
      5m 14s
    5. Submit and button elements
      8m 48s
    6. Using an image as a submit button
      2m 15s
    7. Keeping context with the hidden element
      3m 0s
    8. Setting tab order
      2m 7s
    9. Preloading an autocomplete list using the datalist feature
      5m 26s
    10. Displaying results with output
      3m 4s
  18. 19m 47s
    1. Touring a complete site
      2m 14s
    2. Touring the HTML
      8m 44s
    3. Touring the CSS
      8m 49s
  19. 29s
    1. Goodbye
      29s

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