They have own web browsers having various web technologies differently.
Each enterprise made font type, color and etc, which made all the web developers confuse in developing process.
Finally, Tim Berners Lee who created " World Wide Web" established W3C (World Wide Web Consortium) suggesting the standard web with other enterprises related to web.
They announced HTML2.0 as standard language at 1995 and following that, announced HTML3.2 at 1997, HTML4.0 at December 1997.
Despite of developing standard, Netscape and Microsoft developed the technology to compete each other without considering standard. For example, Netscape made navigator light on and off on word with <blind> tag while Explorer browser made the word with flow effect by <marquee> tag.
This is why, it was the biggest concern for web designers and developers to make cross - browsers,
which means two browsers show same side.
As time passes by, it was getting start to develop more and more like possible to watch movie on website and made the online payment. By this frequent development, W3C judged HTML4 is not enough to follow the flow of web and announced that we are not going to update the standard anymore and starting new web standard project called "XHTML".
