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  2. Column groups and row groups - Wikipedia

    en.wikipedia.org/wiki/Column_groups_and_row_groups

    Colored column groups and row groups in the periodic table of the chemical elements. In tables and matrices, a column group or row group usually refers to a subset of columns or rows, respectively. Short names or notational names include col group or colgroup, and row group or rowgroup. They can have varying uses depending on context: In web ...

  3. Alias (SQL) - Wikipedia

    en.wikipedia.org/wiki/Alias_(SQL)

    An alias is a feature of SQL that is supported by most, if not all, relational database management systems (RDBMSs). Aliases provide users with the ability to reduce the amount of code required for a query, and to make queries simpler to understand. In addition, aliasing is required when doing self joins (i.e. joining a table with itself.)

  4. Illegal character - Wikipedia

    en.wikipedia.org/wiki/Illegal_character

    Illegal character. In computer science, an illegal character is a character that is not allowed by a certain programming language, protocol, or program. [1] To avoid illegal characters, some languages may use an escape character which is a backslash followed by another character. [2]

  5. Web colors - Wikipedia

    en.wikipedia.org/wiki/Web_colors

    Web colors are colors used in displaying web pages on the World Wide Web; they can be described by way of three methods: a color may be specified as an RGB triplet, in hexadecimal format (a hex triplet) or according to its common English name in some cases. A color tool or other graphics software is often used to generate color values.

  6. HTML attribute - Wikipedia

    en.wikipedia.org/wiki/HTML_attribute

    HTML attributes are special words used inside the opening tag to control the element's behaviour. HTML attributes are a modifier of a HTML element type . An attribute either modifies the default functionality of an element type or provides functionality to certain element types unable to function correctly without them.

  7. Tooltip - Wikipedia

    en.wikipedia.org/wiki/Tooltip

    A web browser tooltip displayed for hyperlink to HTML, showing what the abbreviation stands for.. The tooltip, also known as infotip or hint, is a common graphical user interface (GUI) element in which, when hovering over a screen element or component, a text box displays information about that element, such as a description of a button's function, what an abbreviation stands for, or the exact ...

  8. Help:HTML in wikitext - Wikipedia

    en.wikipedia.org/wiki/Help:HTML_in_wikitext

    The MediaWiki software, which drives Wikipedia, allows the use of a subset of HTML 5 elements, or tags and their attributes, for presentation formatting. But most HTML can be included by using equivalent wiki markup or templates; these are generally preferred within articles, as they are sometimes simpler for most editors and less intrusive in the editing window; but Wikipedia's Manual of ...

  9. Zebra striping - Wikipedia

    en.wikipedia.org/wiki/Zebra_striping

    Zebra striping used in Nautilus. Zebra striping is the coloring of every other row of a table to improve readability. [1] Although zebra striping has been used for a long time to improve readability, there is relatively little data on how much it helps. [2] [3]