Uploaded on Dec 6, 2020
Description and concepts of html
                     Aspects Of Hyperttext Markup Language
                     HTML (Hypertext MarkUP 
Language)
 HTML is the lingua franca for publishing 
hypertext on the World Wide Web
 Define tags  ….etc
 Allow to embed other scripting languages 
to manipulate design layout, text and 
graphics
 Platform independent
 Current version is 4.x and in February W3C 
released the first draft of a test suite 4.01
 For more info: http://www.w3.org/MarkUp/
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HTML (Hypertext Markup 
Language)
 Example HTML code:
Hello World
Hello World
2
HTML (Hypertext Markup 
Language)
3
HTML (Hypertext Markup 
Language)
 Common features
– Tables
– Frame
– Form
– Image map
– Character Set
– Meta tags
– Images, Hyperlink, etc…
4
HTML (Hypertext Markup 
Language)
 File Extensions:
HTML, HTM
 Recent recommendation of W3C is 
XHTML 1.0 combines the strength of 
HTML 4 with the power of XML.
  XHTML 1.0 is the first major change to 
HTML since HTML 4.0 was released in 
1997
 More info: http://www.w3.org/TR/xhtml1/
5
CSS (Cascading Style Sheet)
 Simple mechanism for adding style to web page
 Code be embedded into the HTML file
 HTML tag:
CODE
 Also be in a separate file FILENAME.css
 HTML tag:
 Style types mainly include:
• Font
• Color
• Spacing
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CSS (Cascading Style Sheet)
 Controls format:
– Font, color, spacing
– Alignment
– User override of styles
– Aural CSS (non sighted user and voice-
browser)
– Layers
 Layout
 User Interface
7
CSS (Cascading Style Sheet)
 Client’s browser dependable
 Example code:
p,h1,h2 {
margin-top:0px;
margin-bottom:100px;padding:20px 40px 0px 
40px;
}
 More info: 
http://www.w3.org/Style/CSS/
http://www.w3schools.com/css/css_intro.asp
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CSS (Cascading Style Sheet)
Hello World
p,h1,h2 {
margin-top:0px;
 margin-bottom:100px;padding:40px 40px 0px 40px;
}
Hello World
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CSS (Cascading Style Sheet)
10
HTML without CSS
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JavaScript
 Compact object-based scripting language
 Code be embedded  into HTML file
 HTML tag
CODE
 Also be in a separate file FILENAME.js
 HTML tag
 
                                          
                
            
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