What Is Html? | Introduction Html & Html5

 

HTML stands for Hyper Text Markup Language.
and it is the most widely used language to write
web pages.

  • Html is case insensitive language. 
  • Html uses markup tags to define a web page.
  • Html file has an extension .htm or .html 
  • Hypertext refers to the way in which web page
    (HTML document) are linked together. Thus, the
    link available on a webpage is called Hypertext.     
  • As its name suggests, HTML is a Markup Language
    which means you use HTML to simply "mark-up" a text document with tags that tell a Web browser
    how to structure it to display.
  • Originally, HTML was developed with the intent of defining the structure of document like headings,paragraph, list and so forth facilitate the sharing of scientific information between researchers.
  • Now , HTML widely used to format web pages with the help of different tags available in HTML
    language.
  • Currently using HTML 5.

 

Basic HTML Document :  

 

In its simplest form, following is an example of an HTML document: 

  

<!DOCTYPE html>
<html>
       <head>
             <title>This is document title</title>
       </head>
       <body>
                <h1>This is a heading</h1>
                <p>Document content goes here.....</p>
       </body>
</html>

   
Either you can use Try it option available at the top right corner of the code box to check the result of this HTML code, or let's save it in an HTML file test.htm using your favorite text editor. Finally open it using a web browser like Internet Explorer or Google Chrome, or Firefox etc. It must show the following output: 







HTML TAGS

 

As told earlier, HTML is a markup language and makes us
of various tags to format the content. These tags are
enclosed within angle braces <Tag Name>. Except few tags,
most of the tags have their corresponding closing tags. For
example, <html> has its closing tag</html> and <body> tag
has its closing tag </body> tag etc. 

 
Above example of HTML document uses the following tags: 

  

Tag
Description
<!DOCTYPE...>
This tag defines the document type and HTML version.
<html>
This tag encloses the complete HTML document and mainly comprises of document header which is represented by <head>...</head> and document body which is represented by <body>...</body> tags.
<head>
This tag represents the document's header which can keep other HTML tags like <title>, <link> etc.
<title>
The <title> tag is used inside the <head> tag to mention the document title.
<body>
This tag represents the document's body which keeps other HTML tags like <h1>, <div>, <p> etc.
<h1>
This tag represents the heading.
<p>
 This tag represents a paragraph.

 

 

The <!DOCTYPE>Declaration: 

The <!DOCTYPE> declaration tag is used by the web browser to understand the version of the HTML used in the document. Current version of HTML is 5 and it makes use of the following declaration:

<!DOCTYPE html>

There are many other declaration types which can be used in HTML document depending on what version of HTML is being used. We will see more details on this while discussing <!DOCTYPE...> tag along with other HTML tags