body -webkit-animation: -amp-start 8s steps(1,end) 0s 1 normal both; -moz-animation: -amp-start 8s steps(1,end) 0s 1 normal both; -ms-animation: -amp-start 8s steps(1,end) 0s 1 normal both; animation: -amp-start 8s steps(1,end) 0s 1 normal both @-webkit-keyframes -amp-start from visibility