ul{list-style: none;}
.content {
width: 200px;
height: 200px;
}
.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 20s infinite linear 1s both;
}
@keyframes loop-slide {
from {
  transform: translateX(0);
}
to {
  transform: translateX(-100%);
}
}


.wrap {
display: flex;
align-items: center;
height: 200px;
overflow: hidden;
}