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Bootstrap (formerly Twitter Bootstrap) is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains HTML , CSS and (optionally) JavaScript -based design templates for typography , forms , buttons , navigation , and other interface components.
As of June 2011, Firefox 5 includes CSS animations support. [4] CSS animation is also available as a module in the nightly builds of WebKit as well as Google Chrome, Safari 4 and 5 and Safari for iOS (iPhone, iPod Touch, iPad), Android versions 2.x and 3.x, Internet Explorer 10+ and Microsoft Edge browser, the BlackBerry OS 6 web browser, with the -webkit-prefix.
To demonstrate specificity Inheritance Inheritance is a key feature in CSS; it relies on the ancestor-descendant relationship to operate. Inheritance is the mechanism by which properties are applied not only to a specified element but also to its descendants. Inheritance relies on the document tree, which is the hierarchy of XHTML elements in a page based on nesting. Descendant elements may ...
W3Schools is a freemium educational website for learning coding online. [1] [2] Initially released in 1998, it derives its name from the World Wide Web but is not affiliated with the W3 Consortium. [3] [4] [unreliable source] W3Schools offers courses covering many aspects of web development. [5] W3Schools also publishes free HTML templates.
The data-add-back-btn attribute adds a back button to the page if set to true. Lastly, icons can be added to elements via the data-icon attribute. jQuery Mobile has fifty commonly-used icons built in. A brief explanation of the Data Attributes used in this example: data-role – Specifies the role of the element, such as header, content, footer ...
There are numerous community efforts for the Web Components ecosystem. WebComponents.org [10] provides an interface to search for any existing Web Components, Custom Elements Everywhere [11] validates whether popular front-end frameworks are compatible and ready to use Web Components standard, with a set of pending bugs and available workarounds.
The W3C recommends that images that convey no information, but are purely decorative, be specified in CSS rather than in the HTML markup. If decorative images are rendered using HTML that do not add to the content and provide no additional information, then the W3C recommends that a blank alt attribute be included in the form of alt="". [17]
The hamburger button ( ) so named for its unintentional resemblance to a hamburger, is a button typically placed in a top corner of a graphical user interface. [1] Its function is to toggle a menu (sometimes referred to as a hamburger menu ) or navigation bar between being collapsed behind the button or displayed on the screen.