Animate PNG file with css

					<div class="animatediv"></div>

        background-color: #ccc;
        margin: 0 auto;
        /*width and height of one frame */
        width: 951px;
        height: 979px;
        /*load background image of the combine photo */

        background-image: url('');
        /*play video, replace the number 7 with the number of photos combined */
        animation: play 1s steps(7) infinite;

    @keyframes play {
        from { background-position:    0px; }
        /*replace with the width of the image */   
        to { background-position: -6657px; }

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