focus on the breakpoints module

mui · Apr 27, 2020 · 360bfa9 · 360bfa9
1 parent 150e528
commit 360bfa9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/packages/material-ui-system/src/index.d.ts b/packages/material-ui-system/src/index.d.ts
@@ -56,7 +56,7 @@ export function compose<T extends Array<StyleFunction<any>>>(...args: T): Compos
 // css.js
 export function css<Props>(
   styleFunction: StyleFunction<Props>
-): StyleFunction<Props & { css?: Omit<Props, 'theme'> }>;
+): StyleFunction<Props & { css: Omit<Props, 'theme'> }>;
 
 export const display: SimpleStyleFunction<
   'display' | 'displayPrint' | 'overflow' | 'textOverflow' | 'visibility' | 'whiteSpace'