.demo_item{
  	width: 83px;
    height: 64px;
    border-radius: 10px;
    background-image: url(../image/sakanaR.gif);
    background-size: 100% 100%;
    background-position: 0 0;
    background-repeat: no-repeat;
    display: block;
    position: relative;
}

.demo_item.change1{
  background-image: url(../image/sakanaY.gif);
}

.demo_item.change2{
  background-image: url(../image/sakanaG.gif);
}

.demo_item.change3{
  background-image: url(../image/sakanaP.gif);
}

.demo_item.change4{
  background-image: url(../image/sakanaB.gif);
}

.demo_item.change5{
  background-image: url(../image/sakanaBlack.gif);
}


@media screen and (max-width: 600px){
  .demo_item{
    width: calc(83/600 * 100vw);
    height: calc(64/600 * 100vw);
  }
}

.demo_item.anime{
    animation-name: upDown;
    animation-iteration-count: infinite;
    animation-duration: 0.1s;
    animation-direction: alternate;
    animation-timing-function: steps(2);
    transition-duration: .3s;
    transition-property: transform;
}


.demo_stage{
    position: relative;
    width: 100%;
    height: 65px;
    top: 0px;
    display: block;
	/* border-bottom: solid #777 1px; */
}


.demo_wrap{
	display: block;
    position: absolute;
    top: 10px;
    animation-fill-mode: forwards;
    animation-timing-function: linear;
    animation-duration: 15s;
    animation-iteration-count: 1;
  	margin-right: -42px;
}




.demo_wrap[data-order="left"] {
  animation-name: GoLeft;
}
.demo_wrap[data-order="right"] {
  animation-name: GoRight;
}

[data-order="right"] > .demo_item {
  transform: rotateY(180deg);
}



@keyframes GoLeft {
  0% {
      right: 10%;
  }
  100% {
      right: 90%;
  }
}
@keyframes GoRight {
  0% {
      right: 90%;
  }
  100% {
      right: 10%;
  }
}

/* @keyframes upDown {
  0% {
      top: 0;
  }
  100% {
      top: 3px;
  }
} */