diff --git a/src/style.css b/src/style.css
index d5b79c3..f05c22f 100644
--- a/src/style.css
+++ b/src/style.css
@@ -955,10 +955,11 @@ kbd {
   border-radius: 9px;
   font-size: 11.5px;
 }
-.aux-row .aux-chk { flex: 1 1 auto; display: flex; align-items: center; gap: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+.aux-row .aux-chk { flex: 1 1 120px; min-width: 0; display: flex; align-items: center; gap: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
 .aux-row .aux-chk small { opacity: 0.6; }
-.aux-row .aux-mode { flex: 0 0 auto; padding: 4px 6px; font-size: 11px; }
-.aux-row .aux-fx { flex: 1 1 auto; display: flex; gap: 4px; min-width: 0; }
+/* the global control select is width:100%: pin flex sizes explicitly */
+.aux-row .aux-mode { flex: 0 0 170px; width: 170px; padding: 4px 6px; font-size: 11px; }
+.aux-row .aux-fx { flex: 1 1 220px; display: flex; gap: 4px; min-width: 0; }
 .aux-row .aux-fx select { flex: 1; min-width: 0; padding: 4px 6px; font-size: 11px; }
 .aux-row .aux-img { flex: 0 0 auto; width: auto; padding: 4px 8px; font-size: 11px; }
 .aux-row .aux-img-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; opacity: 0.75; }