Web Application Development

What are HTML5 and CSS? List some uses of JavaScript.

HTML5 specifies the structure of content displayed on a web page.

CSS (cascading style sheets)  describes the design and appearance of information on a webpage.

JavaScript allows users to interact with a page's content.

Uses of JavaScript:

1. Often used to check  for appropriate values on web forms.
2. Display alert messages. 
3. Display menus on webpages.
4. Control the appearance of a browser window.
5. Read and write cookies 
6. Display alert boxes.
7. Detect the browser version in order to display a page especially designed for that browser.