shadow-dom-ref.html (257B)
1 <!DOCTYPE html> 2 <style> 3 4 #scope { contain: strict; position: relative; 5 background: lightgrey; width: 100px; height: 100px; } 6 #part { background: blue; margin: 25px; width: 50px; height: 50px; } 7 8 </style> 9 <div id=scope> 10 <div id=part></div> 11 </div>