The Unicode character U+2007 refers to the "Figure Space," which is a whitespace character intended to be the same width as a digit, specifically the numerals in a font. It is designed to provide a consistent space equivalent to the width of a numeric digit.
You can copy Figure Space here and use it wherever you like:
| Unicode | U+2007 |
|---|---|
| HTML Entity |   or   |
| LateX | Not a standard command |
| CSS | \u2007 |