style.css

* {
    box-sizing: border-box;
}

body {
    margin: 0;
}

#carousel {
    position: relative;
    height: 600px;
    overflow: hidden;
    display: flex;
}

.kitty {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    transform: translateX(100%);
}

.kitty img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.kitty.onscreen {
    transform: translateX(0);
    transition-duration: 2s;
}

.kitty.exit {
    transform: translateX(-100%);
    transition: transform 2s;
}

.dot {
    border-radius: 50%;
    height: 30px;
    width: 30px;
    border: solid 4px black;
    margin: 0 10px;
    cursor: pointer;
}

#nav {
    display: flex;
    justify-content: center;
    position: absolute;
    width: 100%;
    top: 90%;
    left: 0;
}

.dot.filled {
    background: #ebedef;
}