#calendar{--radius:0.25rem}#calendar .week-row:first-child .day-cell:first-child{border-top-left-radius:var(--radius)}#calendar .week-row:first-child .day-cell:last-child{border-top-right-radius:var(--radius)}#calendar .week-row:last-child .day-cell:first-child{border-bottom-left-radius:var(--radius)}#calendar .week-row:last-child .day-cell:last-child{border-bottom-right-radius:var(--radius)}