Css not displayed properly in thumbnail

Thumbnail img for my codepen link on twitter is not displaying my ‘.laser’ object properly, but its fine once you open it

https://twitter.com/Rog_Baker

any ideas why?

p.s. yes im a total twitter noob XD

so i somehow fixed the problem by using the share button directly on codepen instead of just pasting a direct link to the page. still curious as to why it wasnt displaying properly. the thumbnail wouldnt so the ‘transform: rotate(18deg)’