gneisscookie

.css-selector {
    background: linear-gradient(92deg, #163d4e, #53792f, #a07949, #d07e93, #d09cd9, #d2eeef);
    background-size: 1200% 1200%;
    -webkit-animation: hue 10s ease infinite;
    -moz-animation: hue 10s ease infinite;
    -o-animation: hue 10s ease infinite;
    animation: hue 10s ease infinite;
}
@-webkit-keyframes hue {
    0%{background-position:0% 50%}