diff --git a/static/js/ui.js b/static/js/ui.js
index 6921f7d41f..a0b680a9fd 100644
--- a/static/js/ui.js
+++ b/static/js/ui.js
@@ -1834,7 +1834,8 @@ $(function () {
 $(function () {
     $("#stream-filters-container").perfectScrollbar({
         suppressScrollX: true,
-        useKeyboard: false
+        useKeyboard: false,
+        wheelSpeed: 20
     });
 });
 
diff --git a/static/styles/zulip.css b/static/styles/zulip.css
index 2de0f198c7..6a0e2ebf71 100644
--- a/static/styles/zulip.css
+++ b/static/styles/zulip.css
@@ -106,9 +106,7 @@ a {
 .app-main .column-right .right-sidebar {
     position: fixed;
     margin-top: 50px;
-    width: 250px;
     z-index:100;
-    padding-left: 10px;
 }
 
 .app-main .column-left .left-sidebar {
@@ -118,6 +116,7 @@ a {
 
 .app-main .column-right .right-sidebar {
     padding-left: 15px;
+    width: 235px;
 }
 
 .app-main .column-middle {
@@ -1166,7 +1165,7 @@ just a temporary hack.
 .sender_name {
     color: #333;
     display: inline-block;
-    font-weight: 900;
+    font-weight: 700;
     vertical-align: top;
     line-height: 12px;
     font-size: 14px;