.rainbow{background-repeat:repeat-x;background-size:6ch 100%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-image:linear-gradient(90deg,red 0%,#f75e05 6%,#fff825 20%,#05d024 35%,#28b9f6 51%,#1059e9 66%,#b22dd9 81%,#e70bf6 95%,red 100%)}