Typo in Shadow DOM 201 tutorial's CSS variables code snippet

[kunalkundaje]

The first code snippet in the "Using CSS Variables" section has a typo and is missing the var keyword. This seems to be affecting only the English version; the other localized versions look correct.

Currently:

button {
  color: --button-text-color, pink); /* default color will be pink */
  font-family: var(--button-font);
}

Should be:

button {
  color: var(--button-text-color, pink); /* default color will be pink */
  font-family: var(--button-font);
}