Looking inside web pages
Web pages are made to present information. The following screenshot shows a simple web page located at data/simple-page.html that has a heading and a paragraph:
All modern web browsers support such web pages. If you open data/simple-page.html with any text editor, it will show the code behind the web page as follows:
<!DOCTYPE html> <html> <head> <title>Simple page</title> </head> <body> <h1>Heading 1</h1> <p>This is a paragraph.</p> </body> </html>
The preceding code is an example of HTML (Hyper Text Markup Language). It is the most widely used language on the Internet. Different from any programming language to be finally translated into computer instructions, HTML describes the layout and content of a web page, and web browsers are designed to render the code into a web page according to web standards.
Modern web browsers use the first line of HTML to determine which standard...
