diff --git a/website/static/playground.css b/website/static/playground.css
index ed239bf5..d1b95192 100644
--- a/website/static/playground.css
+++ b/website/static/playground.css
@@ -1,9 +1,9 @@
 html {
   background-color: #fafafa;
   color: #6a6a6a;
-  font-family: -apple-system, system-ui, BlinkMacSystemFont, "Segoe UI",
-  Roboto, Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans",
-  "Helvetica Neue", Arial, sans-serif;
+  font-family: -apple-system, system-ui, BlinkMacSystemFont, "Segoe UI", Roboto,
+    Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue",
+    Arial, sans-serif;
   font-size: 12px;
   line-height: 1.25;
 }
@@ -15,6 +15,14 @@ body {
   margin: 0;
 }
 
+#root,
+.playground-container {
+  height: 100%;
+  display: flex;
+  flex: 1;
+  flex-direction: column;
+}
+
 header {
   display: flex;
   flex-wrap: nowrap;
@@ -280,4 +288,4 @@ input[type="number"] {
   border: 6px solid transparent;
   border-bottom: none;
   border-top-color: #000;
-}
\ No newline at end of file
+}