html/semantics/forms/the-selectmenu-element/selectmenu-overflow-x-ref.tentative.html - external/w3c/web-platform-tests - Git at Google

 <!DOCTYPE html>
 <style>
 selectmenu {
   width:30px;
   height:20px;
 }
 selectmenu::part(button) {
   background-color:blue;
 }
 </style>
 <selectmenu>
   <option>&nbsp;</option>
 </selectmenu>
	<!DOCTYPE html>
	<style>
	selectmenu {
	width:30px;
	height:20px;
	}
	selectmenu::part(button) {
	background-color:blue;
	}
	</style>
	<selectmenu>
	<option> </option>
	</selectmenu>