Function down

down(bp: string, options?: CreateMediaQueryOptions): Signal<boolean>
Tracks whether the viewport width is below a breakpoint.

Builds a (max-width: <bp - epsilon>px) query. The upper bound is exclusive: a small epsilon is subtracted so down('md') and up('md') never overlap.
Parameters
- bp: string
  Name of a configured breakpoint, e.g. 'md'.
- Optionaloptions: CreateMediaQueryOptions
  Optional per-call settings (CreateMediaQueryOptions).
Returns Signal<boolean>
A Signal<boolean> that is true while the viewport width is < the breakpoint.
Remarks
Must be called within an Angular injection context.
Example
```
export class NavComponent {
  readonly isMobile = down('md');
}
```
See
provideBreakpointEpsilon to tune the exclusive-bound epsilon.
- Defined in api.ts:64