Examples:
height: calc(100vh - 80px);
width: calc(100% - 80px);
width: calc(var(--variable-width) + 20px);
width: calc(2em * 5);
width: calc(10px + 100px);
Examples:
height: calc(100vh - 80px);
width: calc(100% - 80px);
width: calc(var(--variable-width) + 20px);
width: calc(2em * 5);
width: calc(10px + 100px);