804089-1.xhtml (247B)
1 <html xmlns="http://www.w3.org/1999/xhtml"> 2 <head> 3 <style> 4 5 div.flexbox { 6 display: flex; 7 flex-direction: column; 8 } 9 10 </style> 11 </head> 12 <body> 13 <div class="flexbox"><mo xmlns="http://www.w3.org/1998/Math/MathML"><mrow/></mo></div> 14 </body> 15 </html>