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DigitecGalaxus · Jul 23, 2024 · 7e23cd7 · 7e23cd7
1 parent 645eb87
commit 7e23cd7
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Showing 2 changed files with 6 additions and 2 deletions.
diff --git a/packages/next-yak/runtime/mocks/cssLiteral.ts b/packages/next-yak/runtime/mocks/cssLiteral.ts
@@ -76,7 +76,7 @@ export function css<TProps>(
   }
   if (dynamicCssFunctions.length === 0) {
     return {
-      className: "css-mixin",
+      className: "",
       style: undefined,
     };
   }
@@ -87,7 +87,10 @@ export function css<TProps>(
       // the same way as in the real runtime
       executeDynamicExpressionRecursively(props, dynamicCssFunctions[i]);
     }
-    return {};
+    return {
+      className: "",
+      style: undefined,
+    };
   }) as ComponentStyles<TProps>;
 }
 

diff --git a/packages/next-yak/runtime/styled.tsx b/packages/next-yak/runtime/styled.tsx
@@ -225,6 +225,7 @@ function removePrefixedProperties<T extends Record<string, unknown>>(obj: T) {
 }
 
 const mergeClassNames = (a?: string, b?: string) => {
+  if (!a && !b) return undefined;
   if (!a) return b;
   if (!b) return a;
   return a + " " + b;