dl为自定义列表,一般用来实现类似术语表这样的功能 <object><embed>来引入第三方插件,比如flash, pdf等来满足阅读pdf文档或者观看视频的需求,但是html5中就可以直接使用video,audio来完成了! <canvas><svg>标签也是可以来嵌入资源的,其中canvas是基于像素的,svg是矢量的 <selectname="groupdata"id="grouptest"><op...
If you are as curious as I am about what will and will not be in HTML 5, the list ofHTML5 Elements and Attributesthat Simon Pieters has created will help you keep an eye on the progress (viaAnne’s Weblog). As noted in the working draft of the specification, HTML 5 (a.k.a.Web...
Link :https://www.w3.org/TR/html5/ 比较重要的部分:3.2.5章节 4.1章节 4.2章节 4.3章节 4.4章节 4.5章节 meta标签 3.2.5Global attributes(全局属性) The following attributes are common to and may be specified on all HTML elements (even those not defined in this specification): accesskey class c...
If you have two elements of the same name within a Web page (or style sheet), you can use the id attribute to distinguish between elements that have the same name. We are using the id attribute to distinguish between two paragraph elements: Example <!DOCTYPE html><html><head><title>ID ...
HTML5 introduces a number of new attributes, input types, and other elements for your markup toolkit. In this article we’ll be focussing on the new attributes with a future article looking at the new input types. As we’ll see, these new features will go a long way toward making your...
Is it possible to select elements in CSS by their HTML5 data attributes? This can easily be answered just by trying it, and the answer is, of course, yes. But this invariably leads us to the next question, 'Should we select elements in CSS by their HTML5 data attributes?' There are...
自定义元素,有一系列api可以使我们自定义元素和它们的表现,参考Using custom elements shadow dom,绑定一个封装后的shadow dom tree到一个元素,可以将其与主document tree分开处理,参考Using shadow DOM html模板,<template> and <slot> 元素可使我们编写模板并作为自定义元素的基础重复使用,参考Using templates and ...
这说明,浏览器对待自定义元素,就像对待标准元素一样,只是没有默认的样式和行为。这种处理方式是写入HTML5 标准的。 “User agents must treat elements and attributes that they do not understand as semantically neutral; leaving them in the DOM (for DOM processors), and styling them according toCSS(for ...
It seems like Eclipse still has some problems validating HTML5 elements and attributes even now. I'm running Mars 4.5.1 and I have had warnings about the <main> element, despite the fact that there are no warnings about the <section> element. But there is a solution! Window > Preferences...
A lightweight form validation script that augments native HTML5 form validation elements and attributes. - cferdinandi/bouncer