diff --git a/src/components/compose.css b/src/components/compose.css
index 76d05b13..600f7b07 100644
--- a/src/components/compose.css
+++ b/src/components/compose.css
@@ -190,6 +190,8 @@
   background-color: inherit;
   border: 0;
   padding: 0 0 0 8px;
+  margin: 0;
+  appearance: none;
 }
 #compose-container .toolbar-button:not(.show-field) select {
   right: 0;