Introduction to the HTML

Сентябрь 2, 2022

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Introduction to the HTML

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2. HTML Source Document When you connect to a web page by entering its URL into the
3. HTML Source Document HTML source document A text-only document Consists of (1) actual text, and (2)
4. Sample HTML HTML Source Firefox display of the html source
5. HTML, XML, XHTML XML (eXtensible Markup Language): is a set of rules that lets web designers
6. HTML vs. XHTML Some comparisons of HTML vs. XHTML
7. Composition of a HTML Document An HTML document consists of four main parts: the DOCTYPE the
8. Composition of a HTML Document ... … …
9. Creating HTML
10. HTML Tags/Elements Tags are also called elements An attribute is a special code that can enhance
11. HTML Tags/Elements Example This is bold text… This text will appear aligned to the center…
12. tag tag is used to specify keywords that describe a document’s contents as well as a
13. paragraph tag tag The paragraph tag. Used so separate text within a web page. Container type
14. tag tag Is used for line break Example Contact 6150 Sennott Square University of Pittsburgh Pittsburgh,
15. Headings to Define headers. defines the largest header. defines the smallest header. Example This is header
16. & tags tag Renders text as emphasized text tag Renders text as strong emphasized text Example
17. Commenting Source Code Comments are enclosed in Example This is a regular paragraph What are the
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HTML Source Document
When you connect to a web page by entering

its URL into the browser
Browser instructs your computer to send a message out over the Internet to the computer specified by that URL requests that it sends back a certain document (HTML source doc)
HTML source doc describes the content and layout of the web page
After your computer receives the html, your browser interprets the html and displays the resulting web page (text/graphics/links etc)

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HTML Source Document
HTML source document
A text-only document
Consists of (1) actual text,

and (2) tags
A tag is an html code that is enclosed in angel brackets <>; used to lay out the web page.
XHTML is a simple, more standardized version of HTML
XHTML/HTML can be created using a simple text editor like notepad
File extension must be .html or .htm

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Sample HTML
HTML Source
Firefox display of the html source

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HTML, XML, XHTML
XML (eXtensible Markup Language):
is a set of rules

that lets web designers classify their data in a way customized to their needs.
Extendable by creating new types of tags.
XHTML (eXtensible HyperText Markup Language):
A new version of HTML based on XML
Inherits strict syntax rules of XML

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HTML vs. XHTML
Some comparisons of HTML vs. XHTML

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Composition of a HTML Document
An HTML document consists of four main

parts:
the DOCTYPE
the Html
the Head
the Body

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Composition of a HTML Document

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Creating HTML

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HTML Tags/Elements
Tags are also called elements
An attribute is a special code

that can enhance or modify a tag. They are generally located in the starting tag after the tag name.
Basic syntax for html tags and attr.

All tags must be lower case and values of attributes need to be surrounded by quotes

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