Render class import with constructor conditionally

site/src/pages/docs.js

@@ -82,15 +82,22 @@ class Docs extends Component {
     );
   }
 
-  renderClass(cls, mod) {
+  renderConstructor(cls, mod) {
-    return cls in mod.classes && cls in mod.classes[cls] ? (
+    if (cls in mod.classes && cls in mod.classes[cls]) {
-      <div key={cls}>
+      return (
+        <div>
           <p>{this.renderImport(cls, mod)}</p>
-        <h3>new {getName(cls)}()</h3>
+          <h4>new {getName(cls)}()</h4>
         </div>
-    ) : (
+      );
+    }
+  }
+
+  renderClass(cls, mod) {
+    return (
       <div key={cls}>
         <h3>{getName(cls)}</h3>
+        {this.renderConstructor(cls, mod)}
       </div>
     );
   }