diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7a736308..41bfc386 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ _This release is scheduled to be released on 2022-04-01._
 
 - Added a config option under the weather module, absoluteDates, providing an option to format weather forecast date output with either absolute or relative dates.
 - Added test for new weather forecast absoluteDates porperty.
+- The modules get a class hidden added/removed if they get hidden/shown
 
 ### Updated
 
diff --git a/js/main.js b/js/main.js
index bc128194..dfb79708 100644
--- a/js/main.js
+++ b/js/main.js
@@ -245,6 +245,7 @@ const MM = (function () {
 		if (moduleWrapper !== null) {
 			moduleWrapper.style.transition = "opacity " + speed / 1000 + "s";
 			moduleWrapper.style.opacity = 0;
+			moduleWrapper.classList.add("hidden");
 
 			clearTimeout(module.showHideTimer);
 			module.showHideTimer = setTimeout(function () {
@@ -310,6 +311,7 @@ const MM = (function () {
 			moduleWrapper.style.transition = "opacity " + speed / 1000 + "s";
 			// Restore the position. See hideModule() for more info.
 			moduleWrapper.style.position = "static";
+			moduleWrapper.classList.remove("hidden");
 
 			updateWrapperStates();