diff --git a/playground/index.html b/playground/index.html
index 5401ad08..657b6ba3 100644
--- a/playground/index.html
+++ b/playground/index.html
@@ -10,7 +10,7 @@
     <div id="vm-devtools">
         <div id="tab-blockexplorer">
             <h2>VM Block Representation</h2>
-            <textarea id="blockexplorer"></textarea>
+            <textarea id="blockexplorer" spellcheck="false"></textarea>
         </div>
     </div>
     <div id="blocks"></div>
diff --git a/playground/playground.css b/playground/playground.css
index 5b89b6f3..294746ce 100644
--- a/playground/playground.css
+++ b/playground/playground.css
@@ -25,4 +25,5 @@ body {
     background: rgb(36,36,36);
     color: rgb(217,217,217);
     font-family: monospace;
+    font-size: 10pt;
 }