@keyframes rainbow{
0% {color: hsl(0 , 100%, 50%);}
10% {color: hsl(36 , 100%, 50%);}
20% {color: hsl(72 , 100%, 50%);}
30% {color: hsl(108, 100%, 50%);}
40% {color: hsl(144, 100%, 50%);}
50% {color: hsl(180, 100%, 50%);}
60% {color: hsl(216, 100%, 50%);}
70% {color: hsl(252, 100%, 50%);}
80% {color: hsl(288, 100%, 50%);}
90% {color: hsl(324, 100%, 50%);}
100% {color: hsl(360, 100%, 50%);}
}