diff --git a/Lecture1.ipynb b/Lecture1.ipynb
index 3a3cded..766a81f 100644
--- a/Lecture1.ipynb
+++ b/Lecture1.ipynb
@@ -49,41 +49,54 @@
     "### Python\n",
     "A working knowledge of the [Python](https://www.python.org) programming language is assumed for this course. If you are rusty, Chapters 1-4 of [Datacamp](https://www.datacamp.com/courses/intro-to-python-for-data-science) cover the base concepts, as do many other online resources including Imperial's [Introduction to Python](https://www.imperial.ac.uk/students/academic-support/graduate-school/professional-development/doctoral-students/research-computing-data-science/courses/python-for-researchers) course.\n",
     "\n",
-    "Choose your degree programme: \n",
-    "\n",
-    "<div>\n",
-    "  <input type=\"checkbox\" name=\"uchk\">\n",
-    "  <label for=\"uchk\">MEng</label>\n",
-    "</div>\n",
-    "<div>\n",
-    "  <input type=\"checkbox\" name=\"uchk\">\n",
-    "  <label for=\"uchk\">MSc</label>\n",
+    "<style>\n",
+    "  .question-group {\n",
+    "    margin-bottom: 15px; /* Adds space between question sections */\n",
+    "  }\n",
+    "\n",
+    "  .question-group div {\n",
+    "    margin-bottom: 5px; /* Adds space between individual options */\n",
+    "  }\n",
+    "</style>\n",
+    "\n",
+    "<div class=\"question-group\">\n",
+    "  <p>Choose your degree programme:</p>\n",
+    "  <div>\n",
+    "    <input type=\"checkbox\" name=\"uchk\" id=\"meng\">\n",
+    "    <label for=\"meng\">MEng</label>\n",
+    "  </div>\n",
+    "  <div>\n",
+    "    <input type=\"checkbox\" name=\"uchk\" id=\"msc\">\n",
+    "    <label for=\"msc\">MSc</label>\n",
+    "  </div>\n",
     "</div>\n",
     "\n",
-    "If MSc, have your completed the introductory Python course:\n",
-    "\n",
-    "<div>\n",
-    "  <input type=\"checkbox\" name=\"uchk\">\n",
-    "  <label for=\"uchk\">Yes</label>\n",
-    "</div>\n",
-    "<div>\n",
-    "  <input type=\"checkbox\" name=\"uchk\">\n",
-    "  <label for=\"uchk\">No</label>\n",
+    "<div class=\"question-group\">\n",
+    "  <p>If MSc, have you completed the introductory Python course:</p>\n",
+    "  <div>\n",
+    "    <input type=\"checkbox\" name=\"uchk\" id=\"yes\">\n",
+    "    <label for=\"yes\">Yes</label>\n",
+    "  </div>\n",
+    "  <div>\n",
+    "    <input type=\"checkbox\" name=\"uchk\" id=\"no\">\n",
+    "    <label for=\"no\">No</label>\n",
+    "  </div>\n",
     "</div>\n",
     "\n",
-    "Rate your current Python level:\n",
-    "\n",
-    "<div>\n",
-    "  <input type=\"checkbox\" name=\"uchk\">\n",
-    "  <label for=\"uchk\">Beginner</label>\n",
-    "</div>\n",
-    "<div>\n",
-    "  <input type=\"checkbox\" name=\"uchk\">\n",
-    "  <label for=\"uchk\">Intermediate</label>\n",
-    "</div>\n",
-    "<div>\n",
-    "  <input type=\"checkbox\" name=\"uchk\">\n",
-    "  <label for=\"uchk\">Advanced</label>\n",
+    "<div class=\"question-group\">\n",
+    "  <p>Rate your current Python level:</p>\n",
+    "  <div>\n",
+    "    <input type=\"checkbox\" name=\"uchk\" id=\"beginner\">\n",
+    "    <label for=\"beginner\">Beginner</label>\n",
+    "  </div>\n",
+    "  <div>\n",
+    "    <input type=\"checkbox\" name=\"uchk\" id=\"intermediate\">\n",
+    "    <label for=\"intermediate\">Intermediate</label>\n",
+    "  </div>\n",
+    "  <div>\n",
+    "    <input type=\"checkbox\" name=\"uchk\" id=\"advanced\">\n",
+    "    <label for=\"advanced\">Advanced</label>\n",
+    "  </div>\n",
     "</div>\n",
     "\n",
     "### Markdown\n",