diff --git a/package.json b/package.json
index 6135b2d..01aab9b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "trame-jupyter-extension",
-    "version": "2.1.2",
+    "version": "2.1.3",
     "description": "A JupyterLab extension for trame communication layer",
     "keywords": [
         "jupyter",
diff --git a/style/base.css b/style/base.css
index a25de80..8af541f 100644
--- a/style/base.css
+++ b/style/base.css
@@ -4,6 +4,10 @@
     https://jupyterlab.readthedocs.io/en/stable/developer/css.html
 */
 
+.jp-OutputArea-child {
+  height: 100%;
+}
+
 .trame-iframe {
   border: none;
   width: 100%;