Topic: Difference between XHTML,HTML,DHTML
HTML is a Hyper Text Markup Language which is used to display the internet website contents on the internet browsers. This is the common language to develop the web site pages.
DHTML is Dynamic HTML(DHTML) which will be used to display the dynamic web site pages. It is not a standard defined by the World Wide Web Consortium (W3C), it is a "marketing term" that was used by Netscape and Microsoft
XHTML is similar to the HTML but follows the rules of XML. XHTML is used to be compatible with XML programming. Following the rules now would make it possible to include XML programming in the future. It is not difficult to change HTML pages to XHTML, but it can be time-consuming. Finding all line breaks and images to include closing tags, converting any uppercase to lowercase and any other incompatibility can be a nuisance. Using a find and replace program can allow you to edit your code faster, but you still have to reupload all those changes. It is recommended that programmers try to remember these rules to comply with W3C recommendations, so the web pages appear correctly in most browsers. The main differences between HTML and XHTML is the case-sensitivity, the need to use closing tags for all tags, the need to use quotes around all attribute values and that all attributes must be in lowercase as XML requires.