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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 ...
Examples of horizontal and vertical scrollbars around a text box Examples of vertical scrollbar at right end of Wikipedia home page. A scrollbar is an interaction technique or widget in which continuous text, pictures, or any other content can be scrolled in a predetermined direction (up, down, left, or right) on a computer display, window, or viewport so that all of the content can be viewed ...
CSS rules can be used to change the appearance of various XUL elements. But XBL is needed to alter the behavior of a XUL widget, such as a scroll bar. An XBL file contains bindings, each of which describes the behavior of a XUL widget. The root element of an XBL file is the <bindings> element, which contains one or more <binding> elements.
The scrolling and sticky headers work in cell phones, too. Widest scrolling tables are on top of the list below. Narrow your browser window until you see a horizontal scroll bar. Drag it left and right to see the sticky row headers that stay visible. Template:2020 monthly cumulative COVID-19 death totals by country; Template:2021 2nd half.
Classes are defined in the HTML document (generated by the server or by JavaScript). They are used as selectors in CSS. Learn to use the browser inspectors of Firefox, lE, Chrome or Safari to inspect the webpages. By default much of the CSS and JavaScript resources are processed for efficiency.
A CSS width setting for the overall table in desktop view acts like width settings on divs and tables on webpages outside Wikipedia. A horizontal scrollbar is created when the screen is too narrow for the width setting. See width outside Wikipedia: width - CSS: Cascading Style Sheets | MDN; CSS width Property.
This script and CSS makes the sidebar stay in the same position on the screen as you scroll. This may have undesirable side effects in Chrome; e.g., when viewing a page like the very common.css page you just edited to put this code in, the viewable content will become much shorter, and require vertical scrolling in a frame.
XML Binding Language is an XML-based markup language for altering the behavior of a XUL widget, such as a scroll bar. [17] [18] An XBL file contains bindings, each of which describes the behavior of a XUL widget. The root element of an XBL file is the <bindings> element, which contains one or more <binding> elements.