Similarly, just as natural languages have grammatical rules for how different words can be used, HTML has rules for where and how each element and attribute can be used. When scripting is disabled , in a head element: Attributes Global attributes src async defer type charset. Other documents may supersede this document.
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These elements provide a scope within which associated headers, footers and contact information apply.
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The details element represents additional information or controls which the user can obtain on demand. Attributes Global attributes name value. Tags are used to mark up the start of an HTML element and they are usually enclosed in angle brackets.
This is a draft document and may be updated, replaced or obsoleted by other documents at any time. Attributes Global attributes colspan rowspan headers.
It is conventional to use their canonical case, but this is not required.
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However, adherence to this convention is unnecessary. Attributes Global attributes onbeforeunload onerror onhashchange onload onmessage onoffline ononline onpopstate onresize onstorage onunload.
The dl element introduces an association list containing groups of terms and associated descriptions.
Sectioning content is used for structuring a document into sections, each of which generally has its own heading. CSS provides an alternative with limited browser support, but note that blinking text is annoying. After a dt element inside a dialog element. As a child of a datalist element. Bookmark it for future reference. Most elements have at most one parent element, except for the root elementand may have any number of child elements.
If the element has a controls attribute: In order to successfully create and maintain polyglot documents, authors need to be familiar with both the similarities and differences between the two syntaxes.
This quoted string, however, may also be quoted with single quotes, rather than double quotes. One or more groups of: However, by taking advantage of the scripting language's comment syntax, those strings can be commented so that they are ignored by the script in HTML, but still processed as markup in XHTML.
Tables, borders, spacing are usually styled using CSS but we will cover this in a later tutorial. As you may have noticed, the internet is made up of lots of links. Where phrasing content is expected. This structure needs to be reflected in the syntax used to write the document. Our step-by-step guide teaches you the basics of HTML and how to build your first website. This includes text, images, tables, forms and everything else that we see on the internet each day.
Attributes Global attributes open. If the scoped attribute is absent: Some common flow content includes elements like divpem and strong. Listedlabelablesubmittableand resettable form-associated element.
In a head element containing no other title elements. There is, however, one additional restriction that the text cannot contain a string that looks like the element's end tag. Attributes Global attributes form for.
If the element does not have a src attribute: Every document must have a head element.