let changeClassDisplay = document.getElementsByClassName('sidebar');
for (var i = 0; i < changeClassDisplay.length; i += 1) {
changeClassDisplay[i].style.display = 'block';
}
I encountered an issue with this code where it only changed the display property of the div at element level instead of class level. This caused problems when the value was changed at the class level in a media query, as the required priority was not present and the element's value remained unchanged.