/*

tried this - it looks absolutely horrible! So using jquery instead

.flash-chain {
    width:100%;
    height:100%;

    animation-duration: 0.5s;
    animation-name: colorchange;
    animation-iteration-count: infinite;
    animation-timing-function: ease;
    
    -webkit-animation-duration: 0.5s;
    -webkit-animation-name: colorchange;
    -webkit-animation-iteration-count: infinite;
    -webkit-animation-timing-function: ease;
}

@keyframes colorchange
{
    0%   {background: red;}
    100% {background: white;}
}

@-webkit-keyframes colorchange
{
    0%   {background: red;}
    100% {background: white;}
}

*/

.flash-chain-flasher {
    background-color: #ff0000;
}