.before-after-slider {
    position: relative;
    width: 600px; /* Ширина контейнера */
    height: 400px; /* Высота контейнера */
    overflow: hidden;
}

.before-after-slider img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.before-image, .after-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.before-image {
    clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%);
}

.slider {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 4px;
    background-color: #fff;
    cursor: ew-resize;
}