diff --git a/src/blocks/custom.js b/src/blocks/custom.js
index 573b1af..9d15d25 100644
--- a/src/blocks/custom.js
+++ b/src/blocks/custom.js
@@ -37,6 +37,7 @@ module.exports =  {
   },
   output: true,
   execute: function(inputs, block){
+    var customFunc;
     eval("customFunc = function(inp1, inp2, inp3, inp4, inp5){" + block.properties.code + "}");
     return customFunc(inputs.inp1, inputs.inp2, inputs.inp3, inputs.inp4, inputs.inp5);
   },
diff --git a/src/blocks/numbersToElements.js b/src/blocks/numbersToElements.js
index bd901ae..3be62e7 100644
--- a/src/blocks/numbersToElements.js
+++ b/src/blocks/numbersToElements.js
@@ -19,7 +19,7 @@ module.exports =  {
     .join(",");
   },
   pageBlock: {
-    html: "",
+    html: "<center>The numbers should be comma separated (eg 1,2,3)</center>",
     js: function(){}
   }
 }
diff --git a/src/styles.scss b/src/styles.scss
index 7cb7400..b3f107a 100644
--- a/src/styles.scss
+++ b/src/styles.scss
@@ -82,8 +82,8 @@ body{
   .line{
     border-top: 2px solid black;
     position: absolute;
-    z-index: 1;
     pointer-events: none;
+    z-index: 1;
   }
 }
 
@@ -149,6 +149,7 @@ body{
 }
 
 #help{
+  z-index: 2;
   position: fixed;
   top: 0;
   left: 0;