The best and simplest reference to the framework's CSS is the Developer Console of your web browser. This will show you all the CSS variables which the framework declares (at :root level), such as --clr-text and --font-size-base.
The framework CSS includes a --font-family-numericcustom property which specifies a typeface with tabular (monospaced) digits. The platform's default typeface does not guarantee monospaced digits, so numeric content - particularly columns of prices or P&L values - should set font-family: var(--font-family-numeric) to prevent digits from varying in width and causing columns to shift as values update. The platform also defines the CSS class .numeric-field as a short-hand way of setting font-family: var(--font-family-numeric).
The following sections contain some explanatory notes about the standard CSS, not a full itemisation of its variables and classes.
