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The Cascading Style Sheets (CSS) specification describes how elements of web pages are displayed by graphical browsers. Section 4 of the CSS1 specification defines a "formatting model" that gives block-level elements—such as p and blockquote—a width and height, and three levels of boxes surrounding it: padding, borders, and margins. [4]
In Cascading Style Sheets, CSS grid layout or CSS grid creates complex responsive web design grid layouts more easily and consistently across browsers. [6] Historically, there have been other methods for controlling web page layout methods, such as tables , floats , and more recently, CSS Flexible Box Layout (flexbox).
Such elements might be gathered together as footnotes on a page—instead of appearing in the place suggested by their position within the HTML source. The style sheet author might also define a rule with the .notation selector and define the property font-size: small;. The style attribute provides a way of applying element-specific style rules.
CSS Flexible Box Layout, commonly known as Flexbox, [2] is a CSS web layout model. [4] It is in the W3C 's candidate recommendation (CR) stage. [ 2 ] The flex layout allows responsive elements within a container to be automatically arranged depending on viewport (device screen) size.
Note: For vertical alignment of text see: Help:Table#Vertical alignment in cells. If there is no global text alignment set in the top line of the table wikitext, then all text is left aligned, except for header cells which are default center aligned.
For these reasons, and in support of a more semantic web, attributes attached to elements within HTML should describe their semantic purpose, rather than merely their intended display properties in one particular medium.
A CSS reset is a different concept from a CSS framework. A reset style sheet is only used to reset basic formatting. In contrast, a CSS framework, which typically include pre-made style definitions for often-needed UI elements or a grid system, is used to speed up the development process of a website.
Property Screen [a] Print [b] Mobile [c] Table margin: 1em 0 background-color: #f9f9f9: white: transparent border: 1px #aaa solid border-collapse: collapse color: black Header border: 1px #aaa solid: border-right: 1px solid #EEE border-right last-child: none padding: 0.3em 0.4em: 0.2em background-color: #f2f2f2: white: transparent font-weight ...