Reveal function is pure js now

custom/custom.js

 /*** Autoscroll ***/
-autoscroll = () => {
+let autoscroll = () => {
     container = document.querySelector("#site");
     cell = document.querySelector(".cell.selected");
 
@@ -16,6 +16,20 @@ $([IPython.events]).on("output_appended.OutputArea", function () {
 });
 
 /*** Auto reveal ***/
-$([IPython.events]).on("select.Cell", () => {
-    document.querySelector(".cell.selected").classList.add("shown");
-});
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+(() => {
+    let style = document.createElement('style');
+
+    document.head.appendChild(style);
+
+    style.type = 'text/css';
+    style.innerText = ".unselected { visibility: hidden;}";
+
+
+    document.querySelectorAll(".cell:not(:first-of-type)").forEach(e => {
+        e.classList.add("unselected");
+    });
+    
+    $([IPython.events]).on("select.Cell", () => {
+        document.querySelector(".cell.selected").classList.remove("unselected");
+    });
+})();
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