Tailwind is a banger and Purge CSS is the Banger's Banger!

Hi I ran into a similar problem but I managed to get solution for that, try utilizing the below code.

.triangle_top_right {
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 100px 100px 0;
  border-color: transparent orange transparent transparent;
}

the code I actually got from this site