@keyframes pubc-block1{
0%{transform:translateY(0)}
50%{transform:translateY(-20px)}
100%{transform:translateY(20px)}
}
@media screen and (min-width:750px){
.pubc-block1 .item{animation:pubc-block1 2.6s linear 0s infinite alternate}
.pubc-block1 .item:hover{animation-play-state:paused;-webkit-animation-play-state:paused}
.pubc-block1 .item.i1{animation-delay:0s}
.pubc-block1 .item.i2{animation-delay:.2s}
.pubc-block1 .item.i3{animation-delay:.4s}
.pubc-block1 .item.i4{animation-delay:.6s}
}