修复流畅性

themes/Ying/assets/js/main.js

@@ -91,6 +91,10 @@ function initImageFrameReveal() {
         return;
     }
 
+    frames.forEach(function(frame) {
+        frame.classList.add('reveal-pending');
+    });
+
     if (senFrameObserver) {
         senFrameObserver.disconnect();
     }