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However, using a non-breaking space can lead to uneven justified text and additional unwanted spaces or line breaks in the text in certain programs. [8] Alternatively, sentence spacing can be controlled in HTML by separating every sentence into a separate element (e.g., a span), and using CSS to finely control sentence spacing. [9]
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 ...
Style may be chosen specifically for a piece of content, see e.g., color; scope of parameters Alternatively, style is specified for CSS selectors, expressed in terms of elements, classes, and ID's.
CSS does not just apply to visual styling: when spoken out loud by a voice browser, CSS styling can affect speech-rate, stress, richness and even position within a stereophonic image. 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 ...
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]
Used for spacing between lines of text, usually as in printed pages, allowing e.g. room for an editor's copy editing notations. A height of 2 is single spacing between lines:
The document body can be likened to the body of a HTML document, where one specifies the content and the structure of the document, whereas the preamble (and the style sheets) can be likened to the CSS portion of a HTML document, where the formatting, document specifications and other visual attributes are specified.
In actual URIs, including data URIs, control characters (ASCII 0 to 31, and 127) and spaces (ASCII 32) are "excluded characters". This means that whitespace characters are not permitted in data URIs. However, in the context of HTML 4 and HTML 5, linefeeds within an element attribute value (such as the "src" above) are ignored [citation needed ...