diff --git a/addons/website/static/src/js/content/snippets.animation.js b/addons/website/static/src/js/content/snippets.animation.js
index a5805458bbd..20d667e3f66 100644
--- a/addons/website/static/src/js/content/snippets.animation.js
+++ b/addons/website/static/src/js/content/snippets.animation.js
@@ -1274,8 +1274,12 @@ registry.WebsiteAnimate = publicWidget.Widget.extend({
 
             // We need to offset for the change in position from some animation.
             // So we get the top value by not taking CSS transforms into calculations.
-            const $openModal = this.$target.find('.modal:visible');
-            const scrollTop = $openModal.length ? $openModal.scrollTop() : this.$scrollingElement.scrollTop();
+            // Cookies bar might be opened and considered as a modal but it is
+            // not really one (eg 'discrete' layout), and should not be used as
+            // scrollTop value.
+            const scrollTop = document.body.classList.contains("modal-open") ?
+                this.$target.find('.modal:visible').scrollTop() :
+                this.$scrollingElement.scrollTop();
             const elTop = this._getElementOffsetTop($el[0]) - scrollTop;
 
             const visible = this.windowsHeight > (elTop + elOffset) && 0 < (elTop + elHeight - elOffset);