diff --git a/css-forms-1/Overview.bs b/css-forms-1/Overview.bs
index d7b28636593..be8dd22e097 100644
--- a/css-forms-1/Overview.bs
+++ b/css-forms-1/Overview.bs
@@ -695,6 +695,11 @@ input[type=radio]::checkmark {
 ## Selects & buttons
 
 ```css
+select {
+  /* Base appearance select always sizes based on its contents. */
+  field-sizing: content !important;
+}
+
 button,
 ::file-selector-button,
 select,