.wrap {
  display: flex;
  align-items: center;
  height: 340px;
  overflow: hidden;
}

.slideshow {
  display: flex;
}

.content {
  width: 300px;
  height: 300px;
}

.content:nth-child(1) {
  background-color: tomato;
}

.content:nth-child(2) {
  background-color: orange;
}

.content:nth-child(3) {
  background-color: blue;
}

.content:nth-child(4) {
  background-color: green;
}

.slideshow {
  display: flex;
  animation: loop-slide 50s infinite linear 1s both;
}


.slideshow.space {
  height: 300px;
  width: 100%;
  background-image: url(img/slide-yokuyu/slide-yokupng.png);
  background-repeat: repeat-x;
  background-size: auto 100%;
  -moz-animation: slide 300s linear infinite;
  animation: slide 300s linear infinite
}




@keyframes loop-slide {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-100%);
  }
}




@keyframes slide {
  0% {
    background-position: 411.75rem 0;
  }

  100% {
    background-position: -411.75rem 0;
  }
}



@-moz-keyframes slide {

  0% {
    background-position: 411.75rem 0;
  }

  100% {
    background-position: -411.75rem 0;
  }
}