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Element end tags can contain trailing spaces, and empty-element tags in XML can contain spaces before the "/>". In these languages, unnecessary whitespace increases the file size, and so may slow network transfers. On the other hand, unnecessary whitespace can also inconspicuously mark code, similar to, but less obvious than comments in code.
To define similar whitespace, use the border-spacing property (although it is not possible to have both border-spacing and border-collapse for the same table). Moving stuff [ edit ]
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 ...
The margin of an element is the white space that surrounds an element. The content, padding, and border of any other element will not be allowed to enter this area unless forced to do so by some advanced CSS placement.
Whitespace cannot easily be avoided when a page with little text, often a stub, contains an infobox or similar vertical template that is quite tall along with a navbox or similar horizontal template at the bottom, and the amount of text on the page takes up far less space than the template to the left. Even without a horizontal template, there ...
In Vim the joinspaces setting indicates whether extra spaces are inserted when joining lines together, and the J flag in cpoptions indicates whether a sentence must be followed by two spaces. The GNU coding standards recommend using two spaces when coding comments. [4] This also applies to software documentation in the GNU project.
Web browsers usually do not differentiate between single and multiple spaces in source code when displaying text, unless the text is given a "white-space" CSS attribute. Without this being set, collapsing strings of spaces to a single space allow HTML source code to be spaced in a more machine-readable way, at the expense of control over the ...
A second common application of non-breaking spaces is in plain text file formats such as SGML, HTML, TeX and LaTeX, whose rendering engines are programmed to treat sequences of whitespace characters (space, newline, tab, form feed, etc.) as if they were a single character (but this behavior can be overridden).