diff --git a/src/js/page.js b/src/js/page.js
index be48624..93fedd7 100644
--- a/src/js/page.js
+++ b/src/js/page.js
@@ -14,7 +14,7 @@ document.addEventListener("DOMContentLoaded", function() {
     entries.some(entry => {
       console.log('before')
       console.log('entry', entry)
-      // console.log('current', current_intersectiong_entry)
+      console.log('current', current_intersectiong_entry.getboundingClientRect().y < 0)
 
       if (entry.isIntersecting && (current_intersectiong_entry === null || current_intersectiong_entry.target.getboundingClientRect().y < 0)) {
         let res = findCorrespondingTocTitle(entry.target)
@@ -22,6 +22,9 @@ document.addEventListener("DOMContentLoaded", function() {
         current_intersectiong_entry = entry
         return true;
       }
+      console.log('after')
+      console.log('entry', entry)
+      console.log('current', current_intersectiong_entry.getboundingClientRect().y < 0)
       if (!entry.isIntersecting) {
         let res = findCorrespondingTocTitle(entry.target) //First intersection entry
         res.parentElement.classList.remove('bg-blue-800');
diff --git a/static/js/page.js b/static/js/page.js
index 154f834..61421f6 100644
--- a/static/js/page.js
+++ b/static/js/page.js
@@ -1 +1 @@
-function findCorrespondingTocTitle(t){return[...document.querySelectorAll("#toc li a")].find(e=>e.href.substring(e.href.indexOf("#"))==="#"+t.id)}document.addEventListener("DOMContentLoaded",function(){document.getElementById("navbar").clientHeight,document.getElementById("toc");var e=document.querySelectorAll("#toc li a");document.getElementById("page-content");const t=new window.IntersectionObserver(e=>{e.some(t=>{if(console.log("before"),console.log("entry",t),t.isIntersecting){let e=findCorrespondingTocTitle(t.target);return e.parentElement.classList.add("bg-blue-800"),!0}if(!t.isIntersecting){let e=findCorrespondingTocTitle(t.target);return e.parentElement.classList.remove("bg-blue-800"),e.parentElement.nextElementSibling.classList.add("bg-blue-800"),!0}})},{root:null,threshold:.1});var n=[];[...e].forEach(e=>{n.push(e.href.substring(e.href.indexOf("#")))});const o=document.querySelectorAll(n.join(","));o.forEach(e=>{t.observe(e)})});
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+function findCorrespondingTocTitle(n){return[...document.querySelectorAll("#toc li a")].find(e=>e.href.substring(e.href.indexOf("#"))==="#"+n.id)}document.addEventListener("DOMContentLoaded",function(){document.getElementById("navbar").clientHeight,document.getElementById("toc");var e=document.querySelectorAll("#toc li a");document.getElementById("page-content");let t=null;const n=new window.IntersectionObserver(e=>{e.some(n=>{if(console.log("before"),console.log("entry",n),console.log("current",t.getboundingClientRect().y<0),n.isIntersecting&&(null===t||t.target.getboundingClientRect().y<0)){let e=findCorrespondingTocTitle(n.target);return e.parentElement.classList.add("bg-blue-800"),t=n,!0}if(console.log("after"),console.log("entry",n),console.log("current",t.getboundingClientRect().y<0),!n.isIntersecting){let e=findCorrespondingTocTitle(n.target);return e.parentElement.classList.remove("bg-blue-800"),e.parentElement.nextElementSibling.classList.add("bg-blue-800"),!0}})},{root:null,threshold:.1});var o=[];[...e].forEach(e=>{o.push(e.href.substring(e.href.indexOf("#")))});const l=document.querySelectorAll(o.join(","));l.forEach(e=>{n.observe(e)})});
\ No newline at end of file