diff --git a/webapp/channels/src/components/threading/thread_viewer/thread_viewer.scss b/webapp/channels/src/components/threading/thread_viewer/thread_viewer.scss
index a709bd136f..a1c0be465b 100644
--- a/webapp/channels/src/components/threading/thread_viewer/thread_viewer.scss
+++ b/webapp/channels/src/components/threading/thread_viewer/thread_viewer.scss
@@ -9,9 +9,16 @@
     }
 
     .post-list__dynamic--RHS {
+        display: flex;
+        height: 100%;
+        flex-direction: column;
         padding-bottom: 8px;
         scrollbar-color: var(--center-channel-color-32) #fff0;
         scrollbar-width: thin;
+
+        & > div[role="list"]:nth-child(1) {
+            margin-top: auto;
+        }
     }
 
     > div {