><bdi class="secno">8.2 </bdi>Dimension</h3><a class="self-link" href="#dimension" aria-label="Permalink for Section 8.2"></a></div>
  <p>Represents an amount of distance in a single dimension in the <abbr title="User Interface">UI</abbr>, such as a position, width, height, radius, or thickness. The type property must be set to the string “dimension”. The value must be a string containing a number (either integer or floating-point) followed by either a “px” or “rem” unit (future spec iterations 