diff --git a/web/src/styles.css b/web/src/styles.css
index 29c33e5..30495cb 100644
--- a/web/src/styles.css
+++ b/web/src/styles.css
@@ -3214,8 +3214,11 @@ input.leaf-rename:focus {
     padding-right: var(--sp-2);
   }
 
+  /* `order` keeps the draft on the first line: without it the attach button,
+     which precedes it in the DOM, wraps onto a line of its own. */
   .structured-input-wrap {
     flex: 1 1 100%;
+    order: -1;
   }
 
   .structured-composer .structured-config {