Background flicker

by soulwire

HTML

<div class="thing"></div>

CSS

@-webkit-keyframes flicker {
    0% { background-position: 0 0; }
    49.999% { background-position: 0 0; }
    50% { background-position: 0 -100%; }
    100% { background-position: 0 -100%; }
}

.thing {
    -webkit-animation: flicker 500ms infinite;
    background-image: url(http://placekitten.com/100/100);
    position: absolute;
    height: 50px;
    width: 100px;
    left: 100px;
    top: 100px;
}