@keyframes run{
            0%{
                background-position: 0 0;
            }
            8.333%{
                background-position: -140px 0;
            }
            16.666%{
                background-position: -280px 0 ;
            }
            25.0%{
                background-position: -420px 0 ;
            }
            33.333%{
                background-position: -560px 0 ;
            }
            41.666%{
                background-position: -700px 0 ;
            }
            50.0%{
                background-position: -840px 0 ;
            }
            58.333%{
                background-position: -980px 0 ;
            }
            66.666%{
                background-position: -1120px 0 ;
            }
            75.0%{
                background-position: -1260px 0 ;
            }
            83.333%{
                background-position: -1400px 0 ;
            }
            91.666%{
                background-position: -1540px 0 ;
            }
            100%{
                background-position: 0 0 ;
            }
        }
        @-webkit-keyframes run{
            0%{
                background-position: 0 0;
            }
            8.333%{
                background-position: -140px 0;
            }
            16.666%{
                background-position: -280px 0 ;
            }
            25.0%{
                background-position: -420px 0 ;
            }
            33.333%{
                background-position: -560px 0 ;
            }
            41.666%{
                background-position: -700px 0 ;
            }
            50.0%{
                background-position: -840px 0 ;
            }
            58.333%{
                background-position: -980px 0 ;
            }
            66.666%{
                background-position: -1120px 0 ;
            }
            75.0%{
                background-position: -1260px 0 ;
            }
            83.333%{
                background-position: -1400px 0 ;
            }
            91.666%{
                background-position: -1540px 0 ;
            }
            100%{
                background-position: 0 0 ;
            }
        }
        #header{
            width:100%;
            height:140px;
   background-repeat: repeat-y;
            background: url(https://images2015.cnblogs.com/blog/754767/201606/754767-20160601000042992-1734972084.png) ;
            animation:run 1s steps(1, start) infinite;
                -webkit-animation:run 1s steps(1, start) infinite;
        }
   html{
	background: url("https://pic.iask.cn/fimg/326275889500_1920.jpg") no-repeat fixed;
}