@docuong0912
Posted
About your question, i would recommend creating a new empty div and creating its pseudo class element and then set back ground color to white, set opacity for each background element. I don't know if its a good solution but i currently apply that to my solution and it worked well
There are 2 options to style the (rock,paper,scissor) choices background, first create round div element and then set big border size with specific color or create 2 round div lies on each other.
Hope that help!