1435015.html (229B)
1 <!doctype html> 2 <style> 3 div { display: contents; } 4 </style> 5 <math></math> 6 <script> 7 let div = document.createElementNS('http://www.w3.org/1998/Math/MathML', 'div'); 8 document.querySelector('math').appendChild(div); 9 </script>