diff --git a/src/skins/vector/css/matrix-react-sdk/views/dialogs/_ConfirmUserActionDialog.scss b/src/skins/vector/css/matrix-react-sdk/views/dialogs/_ConfirmUserActionDialog.scss
index 4b44a176..58ea56ee 100644
--- a/src/skins/vector/css/matrix-react-sdk/views/dialogs/_ConfirmUserActionDialog.scss
+++ b/src/skins/vector/css/matrix-react-sdk/views/dialogs/_ConfirmUserActionDialog.scss
@@ -26,3 +26,10 @@ limitations under the License.
 .mx_ConfirmUserActionDialog_userId {
     font-style: italic;
 }
+
+.mx_ConfirmUserActionDialog_reasonField {
+    margin-bottom: 40px;
+    width: 90%;
+    font-size: 120%;
+    height: 35px;
+}