XHTML is the big in-thing in web designing these days. It is the fastest growing trend that has now become a highly sought after service. So what is XHTML, and how does it guarantees browser compatibility? Let us study it in some detail.
Plato once said, necessity is the mother of all inventions. HTML, which was once a popular source code, is now overshadowed by XHTML, i.e., Extensible Hypertext Markup Language. Earlier there were few web browsers. But as different web browsers have also marked the industry with its advent today, it becomes important to please all of them (as you don't know which browser the end-user uses). XHTML allows the site to divide the content from its appearance through CSS (Cascading Style Sheet). This makes the layout equally appealing and compressed for all web browsers.
Web has crossed its comprehensible boundaries. It started with being on our system desktop, shifted to laptop screens, and has now reached our cell phones and Personal Digital Assistants. Hence it not only becomes important, but mandatory to do valid XHTML Coding for cross browser compatibility. This takes us to the question of 'Valid XHTML'.
If there is valid XHTML, is there any invalid XHTML as well? What is valid, and how could one guess whether a particular coding is really valid or not?
There are many websites that display the "VALID XHTML" tags in the form of images, text and/or banners. This means that they conform to the W3C's (World Wide Web Consortium) coding standards. To ensure that valid XHTML remains valid, W3C, an international standards organization, has laid out few rules for XHTML coding. Designers follow these rules/guidelines while coding XHTML. Valid XHTML, allow me to compare it, is just like White hat SEO- it pays you the long way. Just like grey hat or black hat SEO can be done easily, but doesn't pay you for long, invalid XHTML can't reap you benefits for long.
So if the XHTML service provider tries to play smart by displaying "Valid XHTML" in its website, without mentioning the "W3C standards", you might want to check its credibility again. An XHTML provider, who has met all W3C standards, would flaunt about it!
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