diff --git a/package.json b/package.json
index 801a54b..42771fe 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,8 @@
     "type": "git",
     "url": "https://github.com/keller-mark/higlass-zarr-datafetchers"
   },
-  "main": "build-pkg/index.min.js",
+  "main": "build-pkg/index.esm.js",
+  "unpkg": "build-pkg/index.umd.js",
   "author": "Mark Keller",
   "license": "MIT",
   "dependencies": {
diff --git a/src/demo/Demo.js b/src/demo/Demo.js
index 752aecd..2d0111c 100644
--- a/src/demo/Demo.js
+++ b/src/demo/Demo.js
@@ -4,13 +4,13 @@ import { HiGlassComponent } from 'higlass';
 import viewconfig from './viewconfig.js';
 
 export default function demo() {
-
     return (
-        <div>
-            <HiGlassComponent
-                viewConfig={viewconfig}
-                zoomFixed={false}
-            />
-        </div>
+        <HiGlassComponent
+            viewConfig={viewconfig}
+            zoomFixed={false}
+            options={{
+                sizeMode: 'bounded'
+            }}
+        />
     );
 }
\ No newline at end of file
diff --git a/src/demo/index.scss b/src/demo/index.scss
index e69de29..3676cb7 100644
--- a/src/demo/index.scss
+++ b/src/demo/index.scss
@@ -0,0 +1,3 @@
+.higlass {
+    height: 100vh;
+}
\ No newline at end of file