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

body {
    background-image: url(https://funart.pro/uploads/posts/2022-08/1659697834_3-funart-pro-p-kachestvennii-fon-na-karte-krasivo-3.jpg);
    padding-top: 85px;
}

.flex-wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
}

.slider-wrapper {
    max-width: 800px;
    width: 100%;
    height: 490px;
    position: relative;
    box-shadow: 10px 10px 44px -10px rgba(0,0,0,0.75);
}

#btn-prev, #btn-next {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 50px;
    background-color: gray;
    opacity: 0.4;
    cursor: pointer;
    /* transition: opacity .2s ease-in-out; */
} 

#btn-prev:hover, #btn-next:hover {
    opacity: 0.6;
}

#btn-next {
    left: auto;
    right: 0;
}

.slide {
    width: 100%;
    height: 100%;
    display: none;
}

.active {
    display: block;
}

img {
    width: 100%;
    height: 100%;
}

.dots-wrapper {
    display: flex;
    justify-content: center;
    margin-top: 15px;
}

.dot.active {
    background-color: #000000;
}

span {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background-color: gray; 
    margin-right: 10px;
    cursor: pointer;
}

span:last-child{
    margin-right: 0;
}


/* <!-- 
второй вариант -->  */

.card{
    width: 300px;
    height: 400px;
    margin: 20px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 2px solid black;
    border-radius: 10px;
}

.card img{
    width: 80%;
}