How to apply dhtmlx library in codepen?

i’m trying to test grid in codepen. I’m newbie with codepen and html, javascript. 🙁

1)This is dhtmlx official example code in docs.

https://snippet.dhtmlx.com/9txizaow?text=grid&mode=wide

2)There’s HTML, Javascript so i paste it to my codepen

https://codepen.io/youhost/pen/BaXYpZK

but i can’t see anything in my codepen. Is there anything wrong in my trying??

Thanks for reading.