pulsing background

@-webkit-keyframes pulse {
    0% {background-color: #FFD1CC;} /**colors appear in this order**/
    25% {background-color: #FFB4C7; }
    50% {background-color: #FFC2F6; }
    75% {background-color: #E5B7FC; }
    100% {background-color: #E0C8FF;} }

body {
    background-color: #FFD1CC; /**same as 0%**/
    -webkit-animation: pulse 10s infinite alternate; }