Alarm clock vibrate

by stopsatgreen

HTML

<div></div>

CSS

@-webkit-keyframes buzz {
    70% { -webkit-filter: blur(0); }
    80% { -webkit-filter: blur(3px); }
    90% { -webkit-filter: blur(0); }
    to { -webkit-filter: blur(3px); }
}

body { background-color: black; }

div {
    background: url('http://s23.postimg.org/xvgmrdt63/clock.png') no-repeat 50% 50% / 100% auto;
    font-size: 200%;
    height: 100px;
    margin: 0 auto;
    text-align: center;
    width: 200px;
    -webkit-animation: buzz 0.75s infinite;
}