Is there an HTML/CSS version of the StarCraft 2 Menu buttons? [on hold]

I am building a webapp and I want to modify one of the StarCraft menu buttons to add them to my webapp, (StarCraft is a Blizzard Entertainment Game). This is an example photo of one of the menu pages from the game from which I would love to recreate the OK button in HTML/CSS:

https://i.ytimg.com/vi/Dwr5Xa6wVRU/maxresdefault.jpg

Unfortunately, I cannot find a website that has code for such buttons. Is there a place where I can find HTML and CSS code that create the OK button from the above photo?

Thank you very much