Umlaut (¨) is the Latin-1 Supplement character at Unicode U+00A8 (DIAERESIS). It is the spacing two-dot diacritical mark — useful in notation. For normal words, prefer precomposed letters like ü.
Remember
Character ¨
Unicode U+00A8
Hex entity ¨
Decimal ¨
Named entity ¨ (alias ¨)
CSS escape \A8
Not the same U+0308 (combining) · ü (ü)
All of these produce the same glyph: ¨. Prefer ¨ when you want an explicit entity (names are case-sensitive — write it exactly).
Use ¨ or ¨ (named), ¨ (hex), ¨ (decimal), or the CSS escape \A8 in the content property. You can also type ¨ directly in UTF-8 HTML.
U+00A8 (DIAERESIS). Hex A8 / 00A8, decimal 168. It belongs to Latin-1 Supplement (U+0080–U+00FF).
Yes. ¨ is the primary HTML5 named entity (alias ¨). You can also use ¨ or ¨.
Use ¨ when you need the standalone spacing diaeresis mark in notation or teaching material. For German/Swedish words, prefer precomposed letters such as ä, ö, and ü.
HTML entities (¨, ¨, or ¨) go in markup. The CSS escape \A8 is used in stylesheets (usually in the content property of ::before/::after). Both render ¨.
¨ (U+00A8) is a spacing character that stands alone. Combining diaeresis (U+0308) attaches to the previous letter. ü is the precomposed letter ü (U+00FC) — usually the best choice in normal text.
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Did you know?
Umlaut (diaeresis) is Unicode U+00A8 (decimal 168) — DIAERESIS. HTML5 provides ¨ (alias ¨). Prefer it for readable source. This is a spacing mark. For real words, prefer precomposed letters like ü. Do not confuse it with the combining diaeresis U+0308.
