a { margin-left: calc(1em + 3px); } b { transition-duration: calc(-200ms + 1s); } c { margin-left: calc(1em + 2px); } d { background-size: calc(-10px + 100%); } e { border-left-width: 2px; } f { background-size: 24px; } g { background-size: 1px; } h { background-size: calc(27em + 36px); } i { border-top-left-radius: 5px 1px; } j { border-bottom-right-radius: 5px 1px; }