diff --git a/babel.config.js b/babel.config.js
index e955840..c5dc6a5 100644
--- a/babel.config.js
+++ b/babel.config.js
@@ -1,5 +1,5 @@
 module.exports = {
-  presets: [
-    '@vue/cli-plugin-babel/preset'
-  ]
-}
+    presets: [
+        '@vue/cli-plugin-babel/preset'
+    ]
+};
diff --git a/src/photomound.vue b/src/photomound.vue
index 2eddf74..276c3fe 100644
--- a/src/photomound.vue
+++ b/src/photomound.vue
@@ -113,7 +113,7 @@ html, body {
 
     .main {
         display: flex;
-        height: calc(100% - $menu-height);
+        height: calc(100% - #{$menu-height});
         padding: $spacing-medium;
         @include boxSize();
     }