HTML 5 draft has not become a formal standard_HTML/Xhtml_Webpage Production
- WBOYOriginal
- 2016-05-16 16:45:401301browse
As seen at W3C yesterday, the new HTML 5 draft (Working Draft) was released on June 10th. I briefly read the new version documentation provided by it and made some notes:
HTML Draft 5 has not become an official standard
Quote:
Publication as a Working Draft does not imply endorsement by the W3C Membership.
The
HTML 5 specification will not be considered finished before there are at least two complete implementations of the specification. The final decision will be announced only after its realization.
XHTML 1 was released in 1999. It took two or three years to be fully supported, and it was not fully promoted until recently, nearly ten years later. So it will take some time until HTML
5 is supported (especially by the "non-mainstream" browser). According to the schedule of the W3C's HTML Working Group, there will be no formal finalization until 2010.
A surprisingly simple DOCTYPE statement
It’s that simple, ha. Moreover, there is no distinction between upper and lower case. It is worth mentioning that the specification requires that if this DOCTYPE is declared, the so-called "'custom' HTML syntax (customized HTML
syntax, I don't know why it is called This)", which is the previous HTML syntax that does not require tag closure. At the same time, it still allows XML format syntax like XHTML. In this case, the DOCTYPE of the xml document needs to be declared instead of the above.
Forward Compatibility
HTML The 5 specification does not have "deprecated" elements. The reason is that on the one hand, it requires designers not to try certain elements, but on the other hand, it requires browsers to support these elements. In this case, based on my intuition, it wants to support all previous web pages written with HTML
or XHTML. This is a blessing for designers. Finally, they no longer have to be restricted by the strict syntax of XHTML.
Deleted elements
Of course, these elements are relative to
HTML 4, but it can also be seen that HTML
5 is not a simple translation to HTML 4 Although it is a retrograde step, it still adheres to some important spirits of XHTML, such as pure interface presentation elements should be abandoned in favor of CSS, etc.
The following elements are discarded “because their effect is purely presentational and therefore better handled by CSS” because they are purely interface table selection elements and should be replaced by CSS:
basefont / big / center / font / s / strike / tt / u
The following elements are discarded "because their usage affected usability and accessibility for the end user in a negative way":
frame/frameset/noframes
The following elements are discarded "because they have not been used often, created confusion or can be handled by other elements":
acronym/applet/isindex/dir
What I want to explain here is:
acronym is recommended to be replaced by abbr. But it seems that under IE, abbr is not as easy to use as acronym. For details, see the
HTML test document at http://www.mikkolee.com/3.
Applet uses object instead. This label has long been discarded. However, when I was learning HTML
, this applet was mentioned in every book. At that time, everyone was full of longing for java applet, but now it has sadly withdrawn from the stage of history, which is quite emotional.
isindex and dir. I won’t talk about the two here. HTML 3 is not recommended.
More new elements
HTML 5 introduces many new elements, which I won’t list here. Please refer to http://www.ibm.com/developerworks/cn/xml/x-html5/.
If you are more interested in HTML 5, there are some related articles listed at the bottom of this article, you can also take a look.
Original text: www.mikkolee.com/22
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