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03 July, 2013

HTML Document: Basic Tags And Elements


Creating an HTML document is easy. To begin coding HTML you need only two things: a simple-text editor and a web browser. Notepad is the most basic of simple-text editors and you will probably code a fair amount of HTML with it. You can use our HTML Online Editor to learn HTML. Here are the simple steps to create a baisc HTML document:

  •  Open Notepad or another text editor.
  •  At the top of the page type <html>.
  •  On the next line, indent five spaces and now add the opening header tag: <head>.
  •  On the next line, indent ten spaces and type <title> </title>.
  •  Go to the next line, indent five spaces from the margin and insert the closing header tag: </head>.
  •  Five spaces in from the margin on the next line, type<body>.
  •  Now drop down another line and type the closing tag right below its mate: </body>.
  •  Finally, go to the next line and type </html>.
  •  In the File menu, choose Save As.
  •  In the Save as Type option box, choose All Files.
  •  Name the file template.htm.
  •  Click Save.

You have basic HTML document now, to see some result put the following code in title and body tags. 
<html>
<head>
<title>This is document title</title> 
</head> 
<body> <h1>This is a heading</h1> <p>Document description goes here.....</p> </body> 
</html>
Now you have created one HTML page and you can use a Web Browser to open this HTML file to see the result. Hope you understood that Web Pages are nothing but they are simple HTML files with some content which can be rendered using Web Browsers. 

HTML Document Structure:
An HTML document starts and ends with <html> and >/html> tags. These tags tell the browser that the entire document is composed in HTML. Inside these two tags, the document is split into two sections:
 The <head>...</head> elements, which contain information about the document such as title of the document, author of the document etc. Information inside this tag does not display outside.
 The <body>...</body> elements, which contain the real content of the document that you see on your screen.

HTML Tags and Elements:
HTML language is a markup language and we use many tags to markup text. In the above example you have seen <html>, <body> etc. are called HTML tags or HTML elements. Every tag consists of a tag name, sometimes followed by an optional list of tag attributes , all placed between opening and closing brackets (< and >). The simplest tag is nothing more than a name  appropriately enclosed in brackets, such as <head> and <i>. More complicated tags contain one or more attributes , which specify or modify the behaviour of the tag. According to the HTML standard, tag and attribute names are not case-sensitive. There's no difference in effect between <head>, <Head>, <HEAD>, or even <HeaD>; they are all equivalent. But with XHTML, case is important: all current standard tag and attribute names are in lowercase.

HTML is Forgiving?
A very good quality associated with all the browsers is that they would not give any error if you have not put any HTML tag or attribute properly. They will just ignore that tag or attribute and will apply only correct tags and attributes before displaying the result. We can not say, HTML is forgiving because this is just a markup language and required to format documents.

HTML Basic Tags
The basic structure for all HTML documents is simple and should include the following minimum elements or tags:
 <html> - The main container for HTML pages
 <head> - The container for page header information
 <title> - The title of the page
 <body> - The main body of the page
Remember that before an opening <html> tag, an XHTML document can contain the optional XML declaration, and it should always contain a DOCTYPE declaration indicating which version of XHTML it uses. Now we will explain each of these tags one by one. In this tutorial you will find the terms element and tag are used interchangeably.

The <html> Element:
The <html> element is the containing element for the whole HTML document. Each HTML document should have one <html> and each document should end with a closing </html> tag.
Following two elements appear as direct children of an <html> element:
 <head>
 <body>
As such, start and end HTML tags enclose all the other HTML tags you use to describe the Web page.

The <head> Element:
The <head> element is just a container for all other header elements. It should be the first thing to appear after the opening <html> tag.
Each <head> element should contain a <title> element indicating the title of the document, although it may also contain any combination of the following elements, in any order:

  •  The <base> tag is used to areate a "base" url for all links on the page. Check HTML Base tag.
  •  The <object> tag is designed to include images, JavaScript objects, Flash animations, MP3 files, QuickTime movies and other components of a page. Check HTML Object tag.
  •  The <link> tag is used to link to an external file, such as a style sheet or JavaScript file. Check HTML Link tag.
  •  The <style> tag is used to include CSS rules inside the document. Check HTML Style tag.
  •  The <script> tag is used to include JAVAScript or VBScript inside the document. Check HTML Script tag.
  •  The <meta> tag includes information about the document such as keywords and a description, which are particularly helpful for search applications. Check HTML Meta tag.

Example:
Following is the example of head tag.
 <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>

The <title> Element:
You should specify a title for every page that you write inside the <title> element. This element is a child of the <head> element). It is used in several ways:
 It displays at the very top of a browser window.
 It is used as the default name for a bookmark in browsers such as IE and Netscape.  Its is used by search engines that use its content to help index pages. Therefore it is important to use a title that really describes the content of your site. The <title> element should contain only the text for the title and it may not contain any other elements. Here is the example of using title tag.
<head>
<title>HTML Basic tags</title>
</head>

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. 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>

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