Strikethrough
Strikethrough (also called strikeout) is a typographical presentation of words with a horizontal line through their center. This is an example.
It signifies one of two meanings. In ink-written, typewritten, or other non-erasable text, the words are a mistake and not meant for inclusion. When used on a computer screen, however, it indicates recently deleted information. It can also be used deliberately to imply a change of thought; for example: "John Doe is an idiot not so intelligent."
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[edit] Computer methods
The HTML presentational inline element for strikethrough is <strike> or <s>.[1] The <del> semantic element represents deleted text, which user agents often render as a strikethrough.[2] The BB Code for it is [s].
In cascading style sheets (CSS) strikethrough is represented using the text-decoration property, for example: <span style="text-decoration:line-through;">ABCDEF</span>
ABCDEF
In plain text scenarios where markup cannot be used, Unicode offers a number of combining characters that achieve similar effects. The "long stroke overlay" (U+0336) results in an unbroken stroke across the text,
- Separate:
A̶B̶C̶D̶E̶F̶G̶H̶I̶ - Combined: A̶B̶C̶D̶E̶F̶G̶H̶I̶
while "short stroke overlay" (U+0335) results in individually struck out characters:
- Separate:
A̵B̵C̵D̵E̵F̵G̵H̵I̵ - Combined: A̵B̵C̵D̵E̵F̵G̵H̵I̵
Similarly, "short solidus overlay" (U+0337) results in diagonally struck out letters:
- Separate:
A̷B̷C̷D̷E̷F̷G̷H̷I̷ - Combined: A̷B̷C̷D̷E̷F̷G̷H̷I̷
Precombined "struck through" characters in Unicode include ƀ, Đđ, Ǥǥ, Ħħ, Ɨɨ, Ɉɉ, Łł, Ɵɵ, Ŧ, ʉ, Ƶƶ, ƻ, ʡ, ʢ, Ғғ, Ҟҟ, Ұұ, Ҍҍ, ⊄, ⊅, ∉. These usually have specific functions or representations and are not intended for general use.
[edit] Previous uses
In medieval manuscripts, "strikethrough" of text with red ink often functions as highlighting (e.g. Domesday Book, c.f. this image).
[edit] Double/multiple strikethrough
Double strikethrough is an option in certain word processing applications such as Microsoft Word. There is no generally agreed meaning of double strikethrough, but it may be used as a second level of single strikethrough.
Double, triple or multiple strikethrough may also (especially formerly) be used as a way of emphasising words. In this function it is likely to be misunderstood by the reader.
