style.css

@keyframes scroll{
0%{transform: tranlatex(0);}
100%{transform: tranlatex(calc(-250px * 7));}
}

.minislider{
height: 100px;
margin: auto;
overflow: relative;
width: auto;
}

.minislider .slide-track{
animation: scroll 40s liner infinite;
display: flex;
width: calc(250px * 14);
}

.minislider .slide{
height: 100px;
width: 250px;
}