diff --git a/_notebooks/2023-05-16-jstest.ipynb b/_notebooks/2023-05-16-jstest.ipynb
index 9fb7947..d705d90 100644
--- a/_notebooks/2023-05-16-jstest.ipynb
+++ b/_notebooks/2023-05-16-jstest.ipynb
@@ -13,29 +13,6 @@
     "- categories: [ PBL]"
    ]
   },
-  {
-   "attachments": {},
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "<html>\n",
-    "    <head>\n",
-    "        <style>\n",
-    "            #output {\n",
-    "                background-color: #000000;\n",
-    "                padding: 10px;\n",
-    "                border: 5px solid #ccc;\n",
-    "            }\n",
-    "        </style>\n",
-    "    </head>\n",
-    "    <body>\n",
-    "        <div id=\"output\">\n",
-    "            Test\n",
-    "        </div>\n",
-    "    </body>\n",
-    "</html>"
-   ]
-  },
   {
    "attachments": {},
    "cell_type": "markdown",
