**五边形：**
polygon(50% 0%, 100% 38%,
82% 100%, 18% 100%, 0% 38%)
**六边形：**
polygon(25% 0%, 75% 0%, 100% 50%,
75% 100%, 25% 100%, 0% 50%)
**星形：**
polygon(50% 0%, 61% 35%, 98% 35%,
68% 57%, 79% 91%, 50% 70%,
21% 91%, 32% 57%, 2% 35%, 39% 35%)
**斜切：**
polygon(0 0, 100% 0, 100% 80%, 0 100%)
