An XHTML document must have an XHTML declaration. Further, since the set of legal values for attributes of type ID is much smaller than for those of type CDATA, the type of the name attribute has been The following example shows how , The language attribute of the script tag is deprecated. WebHTML Minifier. Much of this stability stems from the fact that the language is both feature-rich and flexible. There are two ways of writing HTML: as SGML or as XML. Some have lucky shoes. Simplify one dimension and you often complicate another; perfectionism tends to increase overall complexity. An example root element might look like: There must be a DOCTYPE declaration in the document prior to the root element. Minifying HTML is so far down on the list of performance optimisations that it might as well not exist, outside of ultra-hyper-optimised stuff like the Google search page. Some of the benefits of migrating to XHTML in general are: The following terms are used in this specification. http://my.site.dom/cgi-bin/myscript.pl?class=guest&name=user rather than as http://my.site.dom/cgi-bin/myscript.pl?class=guest&name=user. If providing instructions outside of labels, which allows more flexible positioning and design, consider using aria-labelledby or aria-describedby. Thats the simple story. Note: be aware that if a document must include the character encoding declaration in a meta http-equiv statement, that document may always be interpreted by HTTP servers and/or user agents as Write all XHTML tags and attributes in lower case only. Map sequences of one or more white space characters (including line breaks) to a single inter-word space. being of the internet media type defined in that statement. Minifying HTML is so far down on the list of performance optimisations that it might as well not exist, outside of ultra-hyper-optimised stuff like the Google search page. Its totally valid to do these things for your enjoyment of minimalism or optimisation. Perhaps some of them make your code more readable too. Im more than happy spending those extra bytes for readability (and therefore maintainability) of a projects code. attributes must be unique within the document, valid, and any references to these fragment identifiers (both internal and external) must be updated should the values be changed during conversion. These DTDs approximate the HTML 4 DTDs. But the reality is they just dont matter. Through a new user agent and document } Other documents may supersede this document. Web. Users looking for local copies of the DTDs to work with should download and use those archives Also, some user agents interpret the XML declaration to mean that the document is unrecognized XML rather than HTML, and These terms extend the definitions in [RFC2119] in ways based upon similar definitions in You can tell by the rough dates of the specifications, too: HTML 1 1992, HTML 2.0 1995, HTML 3.2 1997, HTML 4.01 1999; XHTML 1.0 2000, XHTML 1.1 2001; HTML5 2007. Your email address will not be published. Its a large open door for all coders at work, beginners or experts. Nor did I add the backslash for br or hr tags. needless confusion and complexity rather than simple consistency. It sounds like its illegal for documents to be well-formed. White space handling in attribute values isnt done according to XML. Because of that EVERYONE in the web dev world began putting references to HTML elements in lowercase in their CSS when its not needed, when it makes stylesheets less readable, when hardly anybody knows why they do it, and nobody wants to budge from it. Must not contain the ,