* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    width: 100%;
    height: 100vh;
    background-color: pink;
    display: flex;
    justify-content: center;
    align-items: center;
}

.parent-container {
    width: 800px;
    height: 500px;
    border: 2px solid;
}

.images {
    height: 400px;
    border: 2px solid;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

img {
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
}

@keyframes showImage {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

.buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.btn {
    padding: 5px 10px;
    margin-top: 10px;
    margin-left: 10px;
    font-size: 22px;
    border-radius: 15px;
    cursor: pointer;
}

.left {
    background-color: rgba(184, 55, 55, 0.729);
}

.right {
    background-color: greenyellow;
}