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Microdata

Microdata is a WHATWG HTML specification used to nest metadata within existing content on web pages.[1] Search engines, web crawlers, and browsers can extract and process microdata from a web page and use it to provide a richer browsing experience for users. Search engines benefit greatly from direct access to this structured data because it allows search engines to understand the information on web pages and provide more relevant results to users. Microdata uses a supporting vocabulary to describe an item and name-value pairs to assign values to its properties. Microdata is an attempt to provide a simpler way of annotating HTML elements with machine-readable tags than the similar approaches of using RDFa and microformats.
Composing Example HTML Microdata Reference search Search SEO

Using the application cache

HTML5 provides an application caching mechanism that lets web-based applications run offline. Developers can use the Application Cache (AppCache) interface to specify resources that the browser should cache and make available to offline users. Applications that are cached load and work correctly even if users click the refresh button when they are offline.
Advanced App appcache application cache Cache Guide HTML web cache

String.prototype.anchor()

The anchor() method creates an <a> HTML anchor element that is used as a hypertext target.
HTML wrapper methods JavaScript Method Prototype Reference String

String.prototype.big()

The big() method creates a <big> HTML element that causes a string to be displayed in a big font.
Deprecated HTML wrapper methods JavaScript Method Prototype Reference String

String.prototype.blink()

The blink() method creates a <blink> HTML element that causes a string to blink.
Deprecated HTML wrapper methods JavaScript Method Prototype Reference String

String.prototype.bold()

The bold() method creates a <b> HTML element that causes a string to be displayed as bold.
Deprecated HTML wrapper methods JavaScript Method Prototype Reference String

String.prototype.fixed()

The fixed() method creates a <tt> HTML element that causes a string to be displayed in fixed-pitch font.
Deprecated HTML wrapper methods JavaScript Method Prototype Reference String

String.prototype.fontcolor()

The fontcolor() method creates a <font> HTML element that causes a string to be displayed in the specified font color.
Deprecated HTML wrapper methods JavaScript Method Prototype Reference String

String.prototype.fontsize()

The fontsize() method creates a <font> HTML element that causes a string to be displayed in the specified font size.
Deprecated HTML wrapper methods JavaScript Method Prototype Reference String

String.prototype.italics()

The italics() method creates an <i> HTML element that causes a string to be italic.
Deprecated HTML wrapper methods JavaScript Method Prototype String

String.prototype.link()

The link() method creates a string representing the code for an <a> HTML element to be used as a hypertext link to another URL.
HTML wrapper methods JavaScript Method Prototype Reference String

String.prototype.small()

The small() method creates a <small> HTML element that causes a string to be displayed in a small font.
Deprecated HTML wrapper methods JavaScript Method Prototype Reference String

String.prototype.strike()

The strike() method creates a <strike> HTML element that causes a string to be displayed as struck-out text.
Deprecated HTML wrapper methods JavaScript Method Prototype String

String.prototype.sub()

The sub() method creates a <sub> HTML element that causes a string to be displayed as subscript.
Deprecated HTML wrapper methods JavaScript Method Prototype String

String.prototype.sup()

The sup() method creates a <sup> HTML element that causes a string to be displayed as superscript.
Deprecated HTML wrapper methods JavaScript Method Prototype Reference String

BroadcastChannel

API Broadcast Channel API Experimental Expérimental HTML API Interface Reference Référence

BroadcastChannel()

API Broadcast Channel API BroadcastChannel Constructor Experimental Expérimental HTML API Reference Référence

BroadcastChannel.close()

API Broadcast Channel API BroadcastChannel Experimental Expérimental HTML API Method Reference Référence

BroadcastChannel.name

Broadcast Channel API BroadcastChannel Experimental Expérimental HTML API Property Read-only Reference Référence

BroadcastChannel.onmessage

API Broadcast Channel API BroadcastChannel Event Handler Experimental Expérimental HTML API Property Reference Référence