Update app.py

app.py

@@ -90,6 +90,7 @@ st.markdown(
     .tooltip {
         position: relative;
         display: inline-block;
+        cursor: pointer;
     }
     .tooltip .tooltiptext {
         visibility: hidden;
@@ -125,11 +126,11 @@ col1, col2 = st.columns([1, 2])
 with col1:
     st.subheader("🔧 Define Your Function")
 
-    # Tooltip with instructions when hovering over the function input
+    # Tooltip with instructions when hovering over the function input label
     st.markdown(
         """
         <div class="tooltip">
-            <input type="text" readonly style="border: none; color: transparent; background-color: transparent;">
+            <label for="func_input">Enter a function of 'x':</label>
             <span class="tooltiptext">
                 **How to input your function:**
                 - Use `x` for the variable.