diff --git a/res/css/views/elements/_ReplyThread.scss b/res/css/views/elements/_ReplyThread.scss
index 44532ea6a7..bc77407041 100644
--- a/res/css/views/elements/_ReplyThread.scss
+++ b/res/css/views/elements/_ReplyThread.scss
@@ -20,7 +20,8 @@ limitations under the License.
     margin-right: 0;
     margin-bottom: 8px;
     padding-left: 10px;
-    border-left: 4px solid $button-bg-color;
+    border-left: 2px solid $button-bg-color;
+    border-radius: 2px;
 
     .mx_ReplyThread_show {
         cursor: pointer;
diff --git a/res/css/views/rooms/_LinkPreviewWidget.scss b/res/css/views/rooms/_LinkPreviewWidget.scss
index 0832337ecd..b3eff7e960 100644
--- a/res/css/views/rooms/_LinkPreviewWidget.scss
+++ b/res/css/views/rooms/_LinkPreviewWidget.scss
@@ -19,7 +19,8 @@ limitations under the License.
     margin-right: 15px;
     margin-bottom: 15px;
     display: flex;
-    border-left: 4px solid $preview-widget-bar-color;
+    border-left: 2px solid $preview-widget-bar-color;
+    border-radius: 2px;
     color: $preview-widget-fg-color;
 }