diff --git a/src/comment-sidecar-basic.css b/src/comment-sidecar-basic.css
index d8fff09..8f27272 100644
--- a/src/comment-sidecar-basic.css
+++ b/src/comment-sidecar-basic.css
@@ -64,4 +64,5 @@ aside#comment-sidecar form .cs-url-group {
 
 aside#comment-sidecar  form .cs-emailHint {
     font-size: 80%;
+    width: 100%;
 }
\ No newline at end of file