Merge remote-tracking branch 'origin/MC-3910-Align-animations' into pagebuilder-delivery

Author: cspruiell

app/code/Magento/PageBuilder/view/adminhtml/web/css/source/content-type/block/_default.less

@@ -53,6 +53,11 @@
 
 :not(.pagebuilder-content-type-hidden) {
     > .pagebuilder-block.pagebuilder-content-type.pagebuilder-block-overlay {
+        -moz-transition: opacity 200ms, visibility 200ms;
+        -o-transition: opacity 200ms, visibility 200ms;
+        -webkit-transition: opacity, 200ms visibility 200ms;
+        transition: opacity 200ms, visibility 200ms;
+
         &:before {
             content: '';
             opacity: 0;