1 This tests calc() and the CSSOM
4 10px + 15px => calc(25px)
6 100% - 10px => calc(100% - 10px)
7 10px + 10px * 5 => calc(60px)
8 5px + 2em + 6in => calc((5px + 2em) + 6in)
9 100% - 10px / 2 => calc(100% - 5px)
10 1px + 2em - 3rem + 4in => calc(((1px + 2em) - 3rem) + 4in)
11 100px * (1 + 2 * 3 - 4 / 5) => calc(620px)
12 (100px) + 200px => calc(300px)
13 ((((((((((100px)))))))))) => calc(100px)
14 flimstix => calc(100px)