diff --git a/packages/calcite-components/src/components/popover/popover.scss b/packages/calcite-components/src/components/popover/popover.scss
index e81bf209629..cd0519269e2 100644
--- a/packages/calcite-components/src/components/popover/popover.scss
+++ b/packages/calcite-components/src/components/popover/popover.scss
@@ -18,7 +18,10 @@
 
 .position-container {
   @include floating-ui-container();
-  max-inline-size: var(--calcite-popover-max-size-x, 100vw);
+
+  & {
+    max-inline-size: var(--calcite-popover-max-size-x, 100vw);
+  }
 }
 
 @include floating-ui-elem-anim(".position-container");
diff --git a/packages/calcite-components/vite.config.ts b/packages/calcite-components/vite.config.ts
index c71ae5587d3..8d5d0431ce8 100644
--- a/packages/calcite-components/vite.config.ts
+++ b/packages/calcite-components/vite.config.ts
@@ -69,6 +69,7 @@ export default defineConfig({
           }
           return `@import "${globalCss}";\n${code}`;
         },
+        silenceDeprecations: ["import", "global-builtin"],
       },
     },
     postcss: {