[data-scope=field][data-part=select]{background-image:linear-gradient(45deg,#0000 50%,currentColor 50%),linear-gradient(135deg,currentColor 50%,#0000 50%);background-position:calc(100% - 20px) calc(1px + 50%),calc(100% - 16px) calc(1px + 50%);background-repeat:no-repeat;background-size:4px 4px,4px 4px}