update

.storybook/preview-head.html

@@ -1,3 +1,9 @@
-<script>
-    console.log("Hello world");
-</script>
+<style>
+    body.sb-show-main.sb-main-padded {
+        padding: 0;
+    }
+
+    body:not(.kcBodyClass) {
+        background-color: #393939;
+    }
+</style>