HTML5. A vocabulary and associated APIs for HTML and XHTMLW3. C Recommendation 2. October 2. 01. 43 Semantics, structure, and APIs of HTML documents. Documents. Every XML and HTML document in an HTML UA is represented by a Document object. This is the primary mechanism by which a user can tell if a site is. When a Document is created by a script using. Document() or create. HTMLDocument() APIs, the. Document is both ready for post- load tasks and. The document's referrer is an absolute URL that can be set when the. Document is created. If it is not explicitly set, then its value is the empty. Each Document object has a reload override flag that is originally. The flag is set by the document. When the flag is. Document also has a reload override buffer which is a Unicode. Learn more about Avanquest and its wide range of software. We offer software for PC tune-up, website creation, education, small business, bookkeeping and more! I can understand familiar words and very basic phrases concerning myself, my family and immediate concrete surroundings when people speak slowly and clearly. Experience our changing world in immersive virtual reality. Huffington Post RYOT transports you with a growing library of 360 A pioneer in research on play, Dr. Stuart Brown says humor, games, roughhousing, flirtation and fantasy are more than just fun. Plenty of play in childhood makes for. When the user agent is to perform an overridden reload, given a source. Let source be the value of the browsing context's. Let address be the browsing context's active. Navigate the browsing context. If there are no cookies or. Can be set, to add a new cookie to the element's set of HTTP cookies. If the contents are sandboxed into a. Otherwise, if the. Document's origin is not a scheme/host/port tuple, the user agent must. Security. Error exception. Hillary Clinton loves black people. And black people love Hillary—or so it seems. Black politicians have lined up in droves to endorse her, eager to prove their. Supporting efforts to build strong reading and writing skills across the world. Otherwise, the user agent must first obtain. Otherwise, if the Document's origin is. Security. Error exception. All the numeric components above, other than the year, must be given as two ASCII. The year must be. ASCII digits representing the. The Document's source file's last modification date and time must be derived from. If the last modification date and time are not known, the attribute. If there is no. head element. In SVG documents, the SVGDocument interface's. The title element of a document is the. The title attribute must. If the root element is an svg. Mutation events. must be fired as appropriate. If the root element is an svg. Stop the algorithm here. Stop the algorithm here. If the title element is null, then a. Let element be that element. Otherwise, let element be the title. The children of element (if any) must all. A single Text node whose data is the new value. The title IDL attribute. Document interface defined by the SVG specification. HTML and SVG. If. The body attribute, on getting, must return. On setting, the following algorithm must be run: If the new value is not a body or frameset element, then throw a. Hierarchy. Request. Error exception and abort these steps. Otherwise, if the new value is the same as the body element, do nothing. Abort. these steps. Otherwise, if the body element is not null, then replace that element with the. DOM, as if the root element's replace. Child() method had. Otherwise, if there is no root element, throw a Hierarchy. Request. Error exception. Otherwise, the body element is null, but there's a root element. Append. the new value to the root element. In other cases, a new. Node. List object must be returned. The Document interface supports named properties. The supported property names at. Document that have non- empty name content. Document that have non- empty id content. Document that have both non- empty name content. The supported property. To determine the value of a named propertyname when the Document object is indexed for property. Let elements be the list of named elements with the name name in the Document. For example, the ol element represents an ordered list. These definitions allow HTML processors, such as Web browsers or search engines, to present and. As a simple example, consider a Web page written by an author who only considered desktop. Web browsers: < ! DOCTYPE HTML>. < title> My Page< /title>. Welcome to my page< /h. I like cars and lorries and have a big Jeep!< /p>. Where I live< /h. I live in a small hut on a mountain!< /p>. Because HTML conveys meaning, rather than presentation, the same. Instead of large text for. That's not all, either. Since the browsers know which parts of the page are the headings, they. Such features are especially. Even beyond browsers, software can make use of this information. Search engines can use the. Tools can use the headings to create a table of contents (that is in fact how. This example has focused on headings, but the same principle applies to all of the semantics. HTML. Authors must not use elements, attributes, or attribute values for purposes other than their. For example, the following document is non- conforming, despite being syntactically. DOCTYPE HTML>. < html lang=. This would make software that relies on these semantics fail: for example, a. The. semantics of a document at an instant in time are those represented by the state of the document. User. agents must update their presentation of the document as this. HTML has a progress element that describes a progress bar. This includes HTML elements in XML documents, even when. This information is. For simplicity, only the most specific expectations are listed. For example, an. element that is both flow content and phrasing content can be used. This information is redundant with the normative requirements given in the optional tags section, and is provided in the element. Content attributes. A normative list of attributes that may be specified on the element (except where. Examples are sometimes also included. Attributes. Except where otherwise specified, attributes on HTML elements. Except where explicitly stated, there is no. Content models. Each element defined in this specification has a content model: a description of the element's. An HTML. element must have contents that match the requirements described in the element's content. The contents of an element are its children in the. DOM, except for template elements, where the children are those in the template. Document. Fragment assigned to the element when the element. The space characters are always allowed between elements. Empty. Text nodes and Text nodes consisting of just sequences of those. Inter- element whitespace, comment nodes, and processing instruction nodes must be. Thus, an element A is said to be preceded or followed. B if A and B have. Text nodes (other than. Similarly, a node is the only child of. Authors must not use HTML elements anywhere except where they are explicitly. For XML. compound documents, these contexts could be inside elements from other namespaces, if those. For example, the Atom specification defines a content element. When its. type attribute has the value xhtml, the Atom. HTML div element. Thus, a. div element is allowed in that context, even though this is not explicitly. The following broad categories are used. Some elements also fall into other categories, which are defined in other parts of. These categories are related as follows: Sectioning content, heading content, phrasing content, embedded content, and interactive. Metadata is sometimes flow content. Metadata and. interactive content are sometimes phrasing content. Embedded content is also a type of phrasing. Other categories are also used for specific purposes, e. Some elements have unique requirements and do. Metadata content. Metadata content is content that sets up the presentation or behavior of the rest of. RDF) are. also metadata content. Thus, in the XML serialization, one can use RDF, like this: < html xmlns=. Sister says squirrels are fun. I follow her to play with them.< /p>. This isn't possible in the HTML serialization, however. Flow content. Most elements that are used in the body of documents and applications are categorized as. Sectioning content. Sectioning content is content that defines the scope of headings and footers. Each sectioning content element potentially has a heading and an. See the section on headings and sections for further. There are also certain elements that are sectioning. These are distinct from sectioning content, but they can also have an. Heading content. Heading content defines the header of a section (whether explicitly marked up using. Phrasing content. Phrasing content is the text of the document, as well as elements that mark up that. Runs of phrasing content form paragraphs. Most elements that are categorized as phrasing content can only contain elements. Text, in the context of content models, means either nothing. Text nodes. Text is sometimes used as a content. Text nodes are empty or contain just space characters). Text nodes and attribute values must consist of Unicode characters, must not contain U+0. Unicode characters (noncharacters), and must not contain control characters. The. element definitions state what the fallback is, if any. Interactive content. Interactive content is content that is specifically. Certain elements in HTML have an activation behavior, which means that the user. This triggers a sequence of events dependent on the activation mechanism, and. The user agent should allow the user to manually trigger elements that have an activation. When the. user triggers an element with a defined activation behavior in a manner other than. Each element has a click in progress flag, initially set to false. When a user agent is to run synthetic click activation steps on an element, the user. If the element's click in progress flag is set to true, then abort. Set the click in progress flag on the element to true. Run pre- click activation steps on the element. Fire a click event at the element. If the. run synthetic click activation steps algorithm was invoked because the click() method was invoked, then the is. Trusted attribute must be initialized to false. If this click event is not canceled, run post- click. If the event is canceled, the user agent must run canceled activation. Set the click in progress flag on the element to false. When a pointing device is clicked, the user agent must run these steps: If the element's click in progress flag is set to true, then abort. Set the click in progress flag on the element to true. Let e be the nearest activatable element of the element. If there is an element e, run pre- click activation steps. Dispatch the required click event. If there is an element e and the click. Amy Cuddy: Your body language shapes who you are . Social psychologist Amy Cuddy shows how . Read Amy Cuddy's response under .
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