Add media file and remove stray comment

packages/website/ts/components/onboarding/portal_onboarding_flow.tsx

@@ -45,8 +45,6 @@ class PlainPortalOnboardingFlow extends React.Component<PortalOnboardingFlowProp
     private _unlisten: () => void;
     public componentDidMount(): void {
         this._adjustStepIfShould();
-        // Wait until the step is adjusted to decide whether we should show onboarding.
-        // setTimeout(this._autoStartOnboardingIfShould.bind(this), 1000);
         // If there is a route change, just close onboarding.
         this._unlisten = this.props.history.listen(() => this.props.updateIsRunning(false));
     }

packages/website/ts/style/media.ts

@@ -0,0 +1,15 @@
+import * as _ from 'lodash';
+import { css } from 'ts/style/theme';
+import { ScreenWidths } from 'ts/types';
+
+const generateMediaWrapper = (screenWidth: ScreenWidths) => (...args: any[]) => css`
+    @media (max-width: ${screenWidth}) {
+        ${css.apply(css, args)};
+    }
+`;
+
+export const media = {
+    small: generateMediaWrapper(ScreenWidths.Sm),
+    medium: generateMediaWrapper(ScreenWidths.Md),
+    large: generateMediaWrapper(ScreenWidths.Lg),
+};