div.slider {
    position: relative;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 50px;
    margin: 0 10%;
    max-width: 100%;
    overflow-x: hidden;
}

div.slider div.border {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 20%;
}
div.slider div.border:first-child {
    left: 0;
    background: linear-gradient(to right, inherit, rgba(255, 255, 255, 0.05));
}
div.slider div.border:last-child {
    right: 0;
    background: linear-gradient(to left, inherit, rgba(255, 255, 255, 0.05));
}

div.slider div.slide {
    display: flex;
    align-items: center;
    width: 150px;
}