Current Assignment(s)

A4: Multimedia
Due 11:55PM Monday, 10.29

The Building Blocks of Pages

Page Structure and Extra Markup Identifying with ids Styling with Classes Grouping with Divs Sectioning with Spans Building a Page (Step-by-Step) TODO

Iframes

The 3-Part Iframe Element 1. The <iframe> Tags 2. Source 3. Width and Height Review: The Iframe Element Websites in the Iframe Element Maps in the Iframe Element Media in the Iframe Element TODO

The Meta Element

The Meta Element Character Set Attribute Description Attribute Author Attribute Keywords Attribute Viewport Element Review: Meta Elements TODO

Escape Characters

Solving Conflicts with Escape Characters Escape Character Names Escape Character Codes Common Escape Characters TODO

Media Management

Media on the Web Sourcing Images Sourcing Video Sourcing Audio Optimizing for the Web Media Hosting and Storage TODO

Images

Adding Images in HTML The 5-Part Image Element 1. The <img> Tag 2. Source 3. Alternative Text 4. Title 5. Width and Height Review: The Image Element Formats and Browser Support TODO

Video

Adding Video in HTML The 5-Part Video Element 1. The <video> Tags 2. Source 3. Poster 4. Width and Height 5. Other Attributes Review: The Video Element Formats and Browser Support TODO

Audio

Adding Audio in HTML The 3-Part Audio Element 1. The <audio> Tags 2. Source 3. Other Attributes Review: The Audio Element Formats and Browser Support TODO

3. Alternative Text

Element Breakdown

<img src="#" alt="" title="" width="" height="" />

Important This attribute is required in the element.

Proper style and accessibility standards dictate that you must always include the alternative text attribute. The key for this is simply alt="". The value in the double quotes should describe the image. This description is used by screen readers for those who are visually impaired.

Therefore it is critical that you provide a detailed description, especially in the case where the image is necessary to understand the content of the page.

Poor: alt="Me getting help"
Better: alt="Justine receiving help from an instructor while at a computer"

html alt attribute best-practice image required text