负责制定Web标准的World Wide Web Consortium (W3C)正式发表了HTML5.1推荐规格,规格定义了HTML语言第五大版本的第一个小版本。
W3C已在着手制定下个版本HTML5.2,计划2017年下半年发表并替换此次HTML5.1的规格。

这里摘出HTML5.1和HTML5之间的改变部分:
功能添加
The
pictureandsrcsetattributes allow responsive image selection.The
detailsandsummaryelements enable authors to provide extended information that users can choose whether to read.The
menuitemandtype="context"attribute value enable authors to add functionality to the browser’s context menu.The
requestAnimationFrameAPI allows for more efficient animation.enqueueJobandnextJobhelp explain Promise resolution in terms of microtasks.The
revattribute for links, primarily to support RDFa (previously defined in HTML 4).HTMLMediaElementandsrcObjectobjects.Enable cross-origin
trackandEventSourceand cross-origin content forImageBitmapincanvas.event-source-error,event-track-errorandevent-track-loadevents for media fetching.onrejectionhandledandonunhandledrejectionand APIs for tracking promise rejection.HTMLTableCaptionElement,HTMLTableSectionElement,HTMLTableRowElement, for HTML table elements.history.scrollRestorationto control where a users' view is directed when navigating through their history.IDL
[SameObject], for some objects that return collections.Add "noopener" to
relandwindowto allow for browsing contexts to be separated.nonceattribute onscriptandstyleto support the use of Content Security Policy.
功能移除
appCache.Media Controllers.
The
commandAPI.The
usemapattribute onobject.The
accessKeyLabelIDL attribute.The
formattribute is no longer valid forlabel.The
multipleattribute oninput type="range".hreflangandtypeattributes onarea.The use of nested
sectionelements each with anh1to create an outline.Special handling of
isindexin form submission.navigator.yieldForStorageUpdates()and the Storage mutex.Disallow
tfootbeforetbody.[Exposed=Window]for HTMLHyperLinkElementUtils,[Exposed=Window, Worker]for DOMStringMap and IDLDate.
现有功能调整
The
accesskeytakes a single character as a value (as in HTML 4).headerandfooterelements can be nested, if each level is within a sectioning element.optionelements can be empty.The
mousewheelevent is calledwheel.The
valueattribute ofinput type="submit"is translatable.A
figcaptioncan appear anywhere within afigure.Having
title, or writing email to a friend does not make animgmissingaltconformant.The content of
timeis phrasing content, or text.Blank
altonareaelements with duplicatehrefattributes is no longer conformant.When navigating internally, the next search for a link etc starts from where the navigation moved to.
imgand related elements supportwidth="0"..tFootand.createTFoot()always insert at the end of a tablefieldsetandnamedItemmakeHTMLCollections notHTMLFormControlsCollections andHTMLOptionsCollections.frameElementcan returnnull.For images which don’t resolve
currentSrcis the URL given to the resolver, not necessarily the absolute URL.scriptIDL attributes reflect.meta refreshallows;orurl=to be optional.navigator.javaEnabled()is a method.fileCallbackis calledblobcallback.The
toBlob()callback is non-nullable.originonHTMLHyperlinkElementUtilsandLocationis readonly.The first
titlechild of an SVG is its title, not the last.window.open()can returnnull
引用来自“吾爱”的评论
发布又怎样,我大苹果照样不支持引用来自“邪恶八稚女”的评论
浏览器支持怎么样