As a child of head and in Flow content. The trigger element associates an event from a specified source object observer with a desired action to be performed with a specified target object ref.
The semantics of the defined action values are: Reading Systems that support video or audio playback must support the epub: Sample markup of a video player that uses trigger elements to control playback and muting.
These values inherit the semantics defined by that specification for their use. Reading Systems should select and utilize such tagged style sets as appropriate, and as described in that specification. This subset is designed to ease the implementation burden on Reading Systems and to promote accessibility, while retaining compatibility with [ HTML5 ] User Agents.
To support Reading Systems that are not so capable, alternative textual content should be included with each occurrence of the m: The alttext attribute on the m: Note that Reading Systems query these two alternative text locations using a defined preference order.
For Reading System forward compatibility purposes, fallback images may be provided using the altimg attribute on the m: It is recommended that the dimension and alignment attributes altimg-width, altimg-height and altimg-valign be used in conjunction with the altimg attribute.
Description. Compatible Field Types.
|Definition and Usage||Intended for braille tactile feedback devices. Please consult the section on paged media for information about formatting issues that are specific to paged media.|
|Button Colors||Inheritance[ edit ] Inheritance is a key feature in CSS; it relies on the ancestor-descendant relationship to operate.|
|CSS Media Types and printer friendly pages||Real numbers and integers are specified in decimal notation only. Note that many properties that allow an integer or real number as a value actually restrict the value to some range, often to a non-negative value.|
|Thank You For Helping Us!||Inheritance[ edit ] Inheritance is a key feature in CSS; it relies on the ancestor-descendant relationship to operate.|
leftHalf rightHalf: If you know CSS, you can take this one step further by creating your own CSS Keywords. Since keywords are just CSS classnames added to the parent element surrounding a field, you can easily attach your own stylesheet to a theme that contains your own rules based on that classname.
Cascading Style Sheets (CSS) is a style sheet language used for describing the presentation of a document written in a markup language like HTML.
CSS is a cornerstone technology of the World Wide Web, alongside HTML and caninariojana.comped by: Håkon Wium Lie, Bert Bos, World Wide Web Consortium. CSS Attribute Selectors CSS [attribute|="value"] Selector. The [attribute|="value"] selector is used to select elements with the specified attribute starting with the specified value.
The following example selects all elements with a . CheckPoint: CSS Description Types Describe external, embedded, and inline types of CSS in a paper of no fewer than words.
Include the following in your description: A pro and con for each type of CSS Where the CSS code is written for each type of CSS.