Saturday, January 4, 2014

HTML Part 3

The <body> Element:

The <body> element appears after the <head> element and contains the part of the Web page that you actually see in the main browser window, which is sometimes referred to as body content. 
A <body> element may contain anything from a couple of paragraphs under a heading to more complicated layouts containing forms and tables. 

Most of what you will be learning in this and the following five chapters will be written between the opening <body> tag and closing </body> tag. 

Example: 

Here is the example of using body tag. 

<body>    <p>This is a paragraph tag.</p> </body> 


Putting all together: 

Now if we will put all these tags together, it will constitute a complete HTML document as follows: 

<html>  

<head> 

<title>HTML Basic tags</title>

 <meta name="Keywords" content="HTML, Web Pages" /> 

<meta name="description" content="HTML Basic Tags" />

 <base href="http://www.tutorialspoint.com" /> 

<link rel="stylesheet" type="text/css" href="tp.css" /> 

<script type="text/javascript"> _uacct = "UA-232293"; urchinTracker(); </script>

 </head> 

 <body>   

 <p>This is a paragraph tag.</p>

 </body>

  </html>

HTML Meta Tags 

HTML lets you specify metadata - information about a document rather than document content - in a variety of ways. The META element can be used to include name/value pairs describing properties of the HTML document, such as author, Expiry Date, a list of key words, author etc. 
The <meta> tag is an empty element and so does not have a closing tag, rather, <meta> tags carry information within attributes, so you need a forward slash character at the end of the element. 
Metadata provided by using meta tag is a very important part of the web. It can assist search engines in finding the best match when a user performs a search. Search engines will often look at any metadata attached to a page - especially keywords - and rank it higher than another page with less relevant metadata, or with no metadata at all. 
Adding Meta Tags to Your Documents: 
You can add metadata to your web pages by placing <meta> tags between the <head> and </head> tags. The can include the following attributes:

Adding Meta Tags to Your Documents: 

You can add metadata to your web pages by placing <meta> tags between the <head> and </head> tags. The can include the following attributes:
NOTE: Core attributes for all the elements are discussed in next chapter. 

Meta Tag Examples: 

Let's see few important usage of Meta Tags. 

Specifying Keywords: 

We specify keywords which will be used by the search engine to search a web page. So using following tag you can specify important keywords related to your page. 
<head> <meta name="keywords" content="HTML, meta tags, metadata" /> </head> 

Document Description: 

This is again important information and many search engine use this information as well while searching a web page. So you should give an appropriate description of the page. 
<head> <meta name="description" content="Learn about Meta Tags." /> </head> 

Document Revision date: 

This information tells about last time the document was updated.

<head>
<meta name="revised" content="Tutorialspoint, 6/12/2006" />
</head> 

Document Refreshing: 

You can specify a duration after which your web page will keep refreshing. If you want your page keep refreshing after every 10 seconds then use the following syntax. 

<head>
<meta http-equiv="refresh" content="10" />
</head> 

Page Redirection: 

You can specify a page redirection using Meta Tag. Following is an example of redirecting current page to another page. You can specify a duration after which page will be redirected. 

<head>
<meta http-equiv="refresh"           content="10; url=http://www.tutorialspoint.com" />
</head> 

If you don't provide a duration then page will be redirected immediately. 

Setting Cookies: 

You can use Meta Tag to store cookies on client side later information can be used by then Web Server to track a site visitor. 

<head>
<meta http-equiv="cookie" content="userid=xyz;          expires=Wednesday, 08-Aug-00 23:59:59 GMT; /> 

</head> 

If you do not include the expiration date and time, the cookie is considered a session cookie and will be deleted when the user exits the browser.

Setting Author Name: 

You can set an author name in a web page using Meta Tag. See an example below: 

<head>
<meta name="author" content="Monu Kumar" />
</head> 

If you do not include the expiration date and time, the cookie is considered a session cookie and will be deleted when the user exits the browser. 

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