diff --git a/src/skins/vector/css/matrix-react-sdk/views/rooms/_MessageComposer.scss b/src/skins/vector/css/matrix-react-sdk/views/rooms/_MessageComposer.scss
index 462de6f4d..ae8a1b87f 100644
--- a/src/skins/vector/css/matrix-react-sdk/views/rooms/_MessageComposer.scss
+++ b/src/skins/vector/css/matrix-react-sdk/views/rooms/_MessageComposer.scss
@@ -244,6 +244,8 @@ limitations under the License.
 .mx_PopoverOuterContainer {
     border-radius: 5px;
     padding: 2px;
+    background-color: white;
+    overflow: 'hidden';
 }
 
 .mx_PopoverOuterContainer .mx_AppTileFullWidth {
@@ -255,3 +257,8 @@ limitations under the License.
     border-radius: 5px;
     overflow: hidden;
 }
+
+// Set z-index for popovers
+.another-react-popover-container {
+    z-index: 1000;
+}