What is the proper HTML entity for the “x” in a dimension?

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×

  • Unicode: U+00D7 MULTIPLICATION SIGN
  • HTML: ×, ×
  • CSS: \00d7

See the Wikipedia article about the multiplication sign:

In mathematics, the symbol × (read as times or multiplied by) is primarily used to denote the […]

  • Geometric dimension of an object, such as noting that a room is 10×12 feet in area.

Depending on the context, the math element (for MathML) element could be of use.

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