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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 ...
Menu bar of Mozilla Firefox, showing a submenu. A menu bar is a graphical control element which contains drop-down menus.. The menu bar's purpose is to supply a common housing for window- or application-specific menus which provide access to such functions as opening files, interacting with an application, or displaying help documentation or manuals.
A drop-down list or drop-down menu or drop menu, with generic entries. A drop-down list (DDL), drop-down menu or just drop-down [1] – also known as a drop menu, pull-down list, picklist – is a graphical control element, similar to a list box, that allows the user to choose one value from a list either by clicking or hovering over the menu.
A menu bar is displayed horizontally across the top of the screen and/or along the tops of some or all windows. A pull-down menu is commonly associated with this menu type. When a user clicks on a menu option the pull-down menu will appear. [3] [4] A menu has a visible title within the menu bar. Its contents are only revealed when the user ...
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 CSS 1 test suite was created by Eric A. Meyer, Håkon Wium Lie and Tim Boland along with other contributors, finishing in 2018. [3] In late 1998 the first version of CSS 2 was released. In 1999 a revision (CSS 2.1) was released. [2] By 1999 there are 15 members working in "Cascading Style Sheets and Formatting Properties Working Group." [2]
The first comprehensive draft of a grid layout for CSS was created by Phil Cupp at Microsoft in 2011 and implemented in Internet Explorer 10 behind a -ms-vendor prefix.The syntax was restructured and further refined through several iterations in the CSS Working Group, led primarily by Elika Etemad and Tab Atkins Jr.
A navigation bar (or navigation system) is a section of a graphical user interface intended to aid visitors in accessing information. Navigation bars are implemented in operating systems, file browsers , [ 1 ] web browsers , apps, web sites and other similar user interfaces .