diff --git a/packages/astro/src/core/build/scan-based-build.ts b/packages/astro/src/core/build/scan-based-build.ts
index ec473ca79..afb2a5393 100644
--- a/packages/astro/src/core/build/scan-based-build.ts
+++ b/packages/astro/src/core/build/scan-based-build.ts
@@ -76,7 +76,7 @@ export async function build(opts: ScanBasedBuildOptions): Promise<RollupOutput |
 			}),
 			rollupPluginAstroBuildCSS({
 				internals,
-				legacy: true
+				legacy: true,
 			}),
 			...(viteConfig.plugins || []),
 		],
diff --git a/packages/astro/src/core/build/static-build.ts b/packages/astro/src/core/build/static-build.ts
index 086d0b82e..f5e54b7bf 100644
--- a/packages/astro/src/core/build/static-build.ts
+++ b/packages/astro/src/core/build/static-build.ts
@@ -146,7 +146,7 @@ async function ssrBuild(opts: StaticBuildOptions, internals: BuildInternals, inp
 			vitePluginPages(opts, internals),
 			rollupPluginAstroBuildCSS({
 				internals,
-				legacy: false
+				legacy: false,
 			}),
 			...(viteConfig.plugins || []),
 			// SSR needs to be last
@@ -200,7 +200,7 @@ async function clientBuild(opts: StaticBuildOptions, internals: BuildInternals,
 			vitePluginHoistedScripts(astroConfig, internals),
 			rollupPluginAstroBuildCSS({
 				internals,
-				legacy: false
+				legacy: false,
 			}),
 			...(viteConfig.plugins || []),
 		],
diff --git a/packages/astro/src/vite-plugin-build-css/index.ts b/packages/astro/src/vite-plugin-build-css/index.ts
index 94be52405..24101516e 100644
--- a/packages/astro/src/vite-plugin-build-css/index.ts
+++ b/packages/astro/src/vite-plugin-build-css/index.ts
@@ -53,17 +53,17 @@ export function rollupPluginAstroBuildCSS(options: PluginOptions): VitePlugin {
 	const { internals, legacy } = options;
 	const styleSourceMap = new Map<string, string>();
 
-	function * walkStyles(ctx: PluginContext, id: string, seen = new Set<string>()): Generator<[string, string], void, unknown> {
+	function* walkStyles(ctx: PluginContext, id: string, seen = new Set<string>()): Generator<[string, string], void, unknown> {
 		seen.add(id);
-		if(styleSourceMap.has(id)) {
+		if (styleSourceMap.has(id)) {
 			yield [id, styleSourceMap.get(id)!];
 		}
 
 		const info = ctx.getModuleInfo(id);
-		if(info) {
-			for(const importedId of info.importedIds) {
-				if(!seen.has(importedId)) {
-					yield * walkStyles(ctx, importedId, seen);
+		if (info) {
+			for (const importedId of info.importedIds) {
+				if (!seen.has(importedId)) {
+					yield* walkStyles(ctx, importedId, seen);
 				}
 			}
 		}
@@ -76,15 +76,15 @@ export function rollupPluginAstroBuildCSS(options: PluginOptions): VitePlugin {
 	 * to prevent adding all styles to all pages.
 	 */
 	async function addStyles(this: PluginContext) {
-		for(const id of this.getModuleIds()) {
-			if(hasPageDataByViteID(internals, id)) {
+		for (const id of this.getModuleIds()) {
+			if (hasPageDataByViteID(internals, id)) {
 				let pageStyles = '';
-				for(const [_styleId, styles] of walkStyles(this, id)) {
+				for (const [_styleId, styles] of walkStyles(this, id)) {
 					pageStyles += styles;
 				}
 
 				// Pages with no styles, nothing more to do
-				if(!pageStyles) continue;
+				if (!pageStyles) continue;
 
 				const { code: minifiedCSS } = await esbuild.transform(pageStyles, {
 					loader: 'css',
@@ -161,7 +161,7 @@ export function rollupPluginAstroBuildCSS(options: PluginOptions): VitePlugin {
 		},
 
 		async renderChunk(_code, chunk) {
-			if(!legacy) return null;
+			if (!legacy) return null;
 
 			let chunkCSS = '';
 			let isPureCSS = true;
@@ -212,7 +212,7 @@ export function rollupPluginAstroBuildCSS(options: PluginOptions): VitePlugin {
 			const emptyChunkRE = new RegExp(opts.format === 'es' ? `\\bimport\\s*"[^"]*(?:${emptyChunkFiles})";\n?` : `\\brequire\\(\\s*"[^"]*(?:${emptyChunkFiles})"\\);\n?`, 'g');
 
 			// Crawl the module graph to find CSS chunks to create
-			if(!legacy) {
+			if (!legacy) {
 				await addStyles.call(this);
 			}
 
diff --git a/packages/astro/test/page-level-styles.test.js b/packages/astro/test/page-level-styles.test.js
index ae06c6697..6b3fb5dac 100644
--- a/packages/astro/test/page-level-styles.test.js
+++ b/packages/astro/test/page-level-styles.test.js
@@ -13,7 +13,7 @@ describe('Page-level styles', () => {
 		await fixture.build();
 	});
 
-	it('Doesn\'t add page styles for a page without style imports', async () => {
+	it("Doesn't add page styles for a page without style imports", async () => {
 		let html = await fixture.readFile('/index.html');
 		let $ = await cheerioLoad(html);
 		expect($('link').length).to.equal(0);