diff --git a/src/platform/web/ui/css/themes/element/timeline.css b/src/platform/web/ui/css/themes/element/timeline.css
index 21c53057..d7eac940 100644
--- a/src/platform/web/ui/css/themes/element/timeline.css
+++ b/src/platform/web/ui/css/themes/element/timeline.css
@@ -92,6 +92,10 @@ limitations under the License.
     width: 24px;
     background-color: #fff;
     border-radius: 4px;
+    padding: 0;
+    text-align: center;
+    line-height: 22px;
+    cursor: pointer;
 }
 
 .Timeline_messageTime {