Just Do Study - IGNOU Assignments Site: Web Tech - HTML

Thursday 2 February 2012

Web Tech - HTML

}HTML is a language for describing web pages.
}HTML stands for Hyper Text Markup Language
}HTML is not a programming language, it is a markup language
}A markup language is a set of markup tags
}HTML uses markup tags to describe web pages 
------------------------------


<html>
<head>xyz
<title>abc</title></head>
<body>

<h1>My First Heading</h1>

<p>My first paragraph.</p>

</body>
</html>
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HTML Headings
}HTML headings are defined with the <h1> to <h6> tags.
}<h1>This is a heading</h1>
<h2>This is a heading</h2>
<h3>This is a heading</h3>
}HTML Paragraphs
}<p>This is a paragraph.</p>
HTML Links
}HTML links are defined with the <a> tag.
}<a href=“a.html">This is a link</a> 
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}HTML Tags
}HTML markup tags are usually called HTML tags
}HTML tags are keywords surrounded by angle brackets like <html>
}HTML tags normally come in pairs like <b> and </b>
}The first tag in a pair is the start tag, the second tag is the end tag
}Start and end tags are also called opening tags and closing tags.
}HTML documents describe web pages 
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}The HTML <font> Tag Should NOT be Used
}The <font> tag is deprecated in HTML 4, and removed from HTML5.
}The World Wide Web Consortium (W3C) has removed the <font> tag from its recommendations.
}In HTML 4, style sheets (CSS) should be used to define the layout and display properties for many HTML elements. 
}The example below shows how the HTML could look by using the <font> tag:
}Example
------------------------------
}
<font size="5" face="arial" color="red">
This paragraph is in Arial, size 5, and in red text color.
</font>
}
}<p>
<font size="3" face="verdana" color="blue">
This paragraph is in Verdana, size 3, and in blue text color.
</font>
</p>
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}HTML Hyperlinks (Links)
}A hyperlink (or link) is a word, group of words, or image that you can click on to jump to a new document or a new section within the current document.
}When you move the cursor over a link in a Web page, the arrow will turn into a little hand.
}Links are specified in HTML using the <a> tag.
}The <a> tag can be used in two ways:
}To create a link to another document, by using the href attribute
}To create a bookmark inside a document, by using the name attribute
------------------------------
}HTML Link Syntax
}The HTML code for a link is simple. It looks like this:
}<a href="url">Link text</a>
}HTML Tables
}Tables are defined with the <table> tag.
}A table is divided into rows (with the <tr> tag), and each row is divided into data cells (with the <td> tag). td stands for "table data," and holds the content of a data cell. A <td> tag can contain text, links, images, lists, forms, other tables, etc.
------------------------------
}<table border="1">
<tr>
<td>row 1, cell 1</td>
<td>row 1, cell 2</td>
</tr>
<tr>
<td>row 2, cell 1</td>
<td>row 2, cell 2</td>
</tr>
</table> 
------------------------------
HTML Tables and the Border Attribute
}To display a table with borders, specify the border attribute:
}if you do not specify a border attribute, the table will be displayed without borders. Sometimes this can be useful, but most of the time, we want the borders to show.
}To display a table with borders, specify the border attribute:
}
}<table border="1">
<tr>
<td>Row 1, cell 1</td>
<td>Row 1, cell 2</td>
</tr>
</table>
------------------------------
}HTML Table Headers
}Header information in a table are defined with the <th> tag.
}All major browsers will display the text in the <th> element as bold and centered.
------------------------------
}All major browsers will display the text in the <th> element as bold and centered.
}<table border="1">
<tr>
<th>Header 1</th>
<th>Header 2</th>
</tr>
<tr>
<td>row 1, cell 1</td>
<td>row 1, cell 2</td>
</tr>
<tr>
<td>row 2, cell 1</td>
<td>row 2, cell 2</td>
</tr>
</table>
------------------------------
HTML Unordered Lists
HTML Unordered Lists
An unordered list starts with the <ul> tag. Each list item starts with the <li> tag.
The list items are marked with bullets (typically small black circles)
<ul>
<li>Coffee</li>
<li>Milk</li>
</ul> .
How the HTML code above looks in a browser:
}Coffee
}Milk
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}<ul type=“circle”></ul>
}<ul type=“disc”></ul>
}<ul type=“square”></ul>
------------------------------
HTML Ordered Lists
HTML Ordered Lists
An ordered list starts with the <ol> tag. Each list item starts with the <li> tag.
The list items are marked with numbers.
<ol>
<li>Coffee</li>
<li>Milk</li>
</ol>
How the HTML code above looks in a browser:
1.Coffee
2.Milk
------------------------------
HTML Definition Lists
}HTML Definition Lists
}A definition list is a list of items, with a description of each item.
}The <dl> tag defines a definition list.
}The <dl> tag is used in conjunction with <dt> (defines the item in the list) and <dd> (describes the item in the list):
}<dl>
<dt>Coffee</dt>
<dd>- black hot drink</dd>
<dt>Milk</dt>
<dd>- white cold drink</dd>
</dl>
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}HTML List Tags
}Tag Description
}<ol> Defines an ordered list
}<ul> Defines an unordered list
}<li> Defines a list item
}<dl> Defines a definition list
}<dt> Defines an item in a definition term
dd> Defines a description of an item in a definition list
------------------------------
}HTML Images
}HTML images are defined with the <img> tag.
}Example
}<img src=“abc.jpg" width="104" height="142" />
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