blinky.css

script {
    display: block;
    -webkit-animation-name: blink;
    -webkit-animation-iteration-count: infinite;
    -webkit-animation-timing-function: cubic-bezier(1.0,0,0,1.0);
    -webkit-animation-duration: 1s;
    animation-name: blink;
    animation-iteration-count: infinite;
    animation-timing-function: cubic-bezier(1.0,0,0,1.0);
    animation-duration: 1s;
}

@-webkit-keyframes blink{
    from{
        opacity:1;
    }
    to{
        opacity: 0;
    }
}

@keyframes blink{
    from{
        opacity:1;
    }
    to{
        opacity: 0;
    }
}