Fixed the problem of fixed comments.

app/javascript/styles/closed-social/timeline_comments.scss

@@ -9,7 +9,7 @@
   transform-origin: 100% 0%;
   margin-bottom: -32px;
   margin-right:8px;
-  position: absolute;
+  position: relative;
   z-index:9;
   &:hover {
     max-height: 60vh;