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In web development, the CSS box model refers to how HTML elements are modeled in browser engines and how the dimensions of those HTML elements are derived from CSS properties. It is a fundamental concept for the composition of HTML webpages. [3] The guidelines of the box model are described by web standards World Wide Web Consortium (W3C ...
Website. www.w3.org /TR /css-flexbox-1 /. 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.
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.
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Image using width upright=1.8, so that it is 80% wider than the Siberian Husky image above (which is at the default upright=1 width) Image using upright=0.5; a scaling factor less than 1 contracts the image width. An image's size is controlled by changing its width – after which software automatically adjusts height in proportion.
Scale the image to be no greater than the given width or height, keeping its aspect ratio. Scaling up (i.e. stretching the image to a greater size) is disabled when the image is framed. Link Link the image to a different resource, or to nothing. Alt Specify the alt text for the image. This is intended for visually impaired readers.
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.
Since the proportions of File:Flag of Scotland.svg are 5×3, specifying a width of 120px generates a 120×72px image, and specifying a height of 60px generates a 100×60px image, so a size field of 120x60px generates the smaller of the two, namely, the 100×60px image: