diff --git a/stylesheets/_global.scss b/stylesheets/_global.scss
index 39dcb6822c8d..0414f0c3f4c2 100644
--- a/stylesheets/_global.scss
+++ b/stylesheets/_global.scss
@@ -91,7 +91,6 @@ button.hamburger {
 
 ::-webkit-scrollbar {
     width: 10px;
-    z-index: 1000;
 }
 
 ::-webkit-scrollbar-track {
@@ -317,7 +316,6 @@ $avatar-size: 44px;
   border-left: 4px solid $blue;
 }
 .contact {
-  position: relative;
   padding: 12px;
   white-space: nowrap;
   overflow: hidden;
diff --git a/stylesheets/_index.scss b/stylesheets/_index.scss
index a6a268f66f5d..4f9c078256be 100644
--- a/stylesheets/_index.scss
+++ b/stylesheets/_index.scss
@@ -24,7 +24,7 @@
   .content {
     background-color: $grey_l;
     flex-grow: 1;
-    overflow-y: auto;
+    overflow-y: overlay;
   }
 }
 .network-status-container {
diff --git a/stylesheets/manifest.css b/stylesheets/manifest.css
index cf764edb3be8..b180167965d6 100644
--- a/stylesheets/manifest.css
+++ b/stylesheets/manifest.css
@@ -105,8 +105,7 @@ button.hamburger {
     background-color: black; }
 
 ::-webkit-scrollbar {
-  width: 10px;
-  z-index: 1000; }
+  width: 10px; }
 
 ::-webkit-scrollbar-track {
   background: transparent; }
@@ -316,7 +315,6 @@ button.hamburger {
   border-left: 4px solid #2090ea; }
 
 .contact {
-  position: relative;
   padding: 12px;
   white-space: nowrap;
   overflow: hidden;
@@ -765,7 +763,7 @@ img.emoji.jumbo {
   .gutter .content {
     background-color: #f3f3f3;
     flex-grow: 1;
-    overflow-y: auto; }
+    overflow-y: overlay; }
 
 .network-status-container .network-status {
   background: url("/images/error_red.svg") no-repeat left 10px center;