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Structuring Content with HTML

Structuring Content with HTML . UNIT D. HTML Tags. HTML tags: text enclosed in angle brackets that surround pieces of Web page content. <1i> tag = list opening tag <1i>study for test</1i> “study for test” in a list </1i> tag = list closing tag. HTML Elements.

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Structuring Content with HTML

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  1. Structuring Content with HTML UNIT D

  2. HTML Tags • HTML tags: text enclosed in angle brackets that surround pieces of Web page content. • <1i> tag = list opening tag • <1i>study for test</1i> • “study for test” in a list • </1i> tag = list closing tag

  3. HTML Elements • Element: the combination of an opening tag, content and closing tag • Attributes: describe other properties of the element • Markup: the use of tags to describe the structure of a document

  4. Semantic Markup • Semantic markup: using HTML tags to mark up elements in a meaningful and descriptive way • <h1> first heading • <h2> second heading • <h3> third heading

  5. Common Text Elements • Table D-1 Page 75

  6. Screen Reader • People who are blind or have severely impaired eyesight use software called screen reader. • Uses a synthesized voice to read aloud the text that is on the screen. • If HTML tags are absent or incorrectly applied, it makes it difficult or impossible for visitors.

  7. Headings • HTML has 6 Levels of Heading , but usually you will only use 3 or 4 • Visual hierarchy: varying the size of the text elements in relationship to importance. • <h1> • <h2> • <h3> • <h4>

  8. XHTML • Extensible Hypertext Markup Language • Expression uses XHTML • XHTML is a newer version of HTML that has slightly different rules and tags. • Still uses .htm or .html

  9. Lists – page 80 • Ordered Lists: appear numbered by default 1. list 2. list 3. list • Unordered Lists: appear with bullets beside them by default • list • list • list

  10. List cont. • Definition Lists: used to list terms and their definitions • Not used as often.

  11. Cascading Style Sheets (CSS) • CSS Style Rule: (referred to as style) describes how a particular element or piece of content should be displayed. • CSS is the design of your page, it is what makes your website “LOOK GOOD”

  12. How CSS Style Rules Work • Style Rule has 2 Parts, the Selector and the Declaration. • Selector: tells the browser what the style should apply to. • 3 types: IDs, elements, classes • ID: only be used once on a page and is used with a <div> • Elements and Classes will be discuss later.

  13. Style Rule part 2 • Declaration: describes what properties you want to change and how you want to change them. • Each declaration has a property and a value. • Property: describes what to change • Value: describes how to change • Figure D-12 p83

  14. Options for Placing Style Rules • Internal style sheet: directly in your HTML • Convenient but limits you to only used in one page • External style sheet: separate file with a .css extension • Good option- time saving • Applies to all pages at a time • Figure D-13 p83 • Inline Styles: placed directly around content • Not a good option- can’t be reused

  15. CSS tools available

  16. Creating an Element-Based Style Rule • Element- Based: redefines the look of a HTML element. • Write a rule to make all unordered list have a special icon beside them. • Inheritance: when a style is applied to an element on a page- it is applied to all elements it contains • <body> surrounds all the page content, if you apply a style to the <body> it will apply to all content

  17. Modifying a Style Rule • Pixel: the basic unit of measurement for anything displayed on a computer screen. • Hex value (hexidecimal code): a sequence of six numbers and/or letters used to define a specific color in CSS rules.

  18. Creating a Class-Based Style Rule- p 88 • Class-based rule: a style rule that can be created and applied to any selected content or element. • Class-based styles must be manually applied to content.

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