diff --git a/src/content_script.js b/src/content_script.js
index 0c9c85b..7d89aaa 100644
--- a/src/content_script.js
+++ b/src/content_script.js
@@ -49,27 +49,14 @@ function hideBanners() {
 
 
 function main() {
-  let state = 'off'
   let revertSteps = []
 
   function onScroll(event) {
-    let action
-    if (window.scrollY > 20 && (state === 'off' || state === 'on')) {
-      state = 'starting'
-      action = () => {
-        revertSteps = hideBanners().concat(revertSteps)
-        state = 'on'
-      }
-    } else if (window.scrollY <= 0 && state === 'on') {
-      state = 'stopping'
-      action = () => {
-        revertSteps.forEach(step => step())
-        revertSteps = []
-        state = 'off'
-      }
-    }
-    if (action) {
-      window.requestAnimationFrame(action)
+    if (window.scrollY > 20) {
+      revertSteps = hideBanners().concat(revertSteps)
+    } else if (window.scrollY <= 0) {
+      revertSteps.forEach(step => step())
+      revertSteps = []
     }
   }