.slider {
    position: relative;
    height: 500px;
    overflow: hidden;
    justify-content: center;
    margin: 20px;
}
.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease;
    opacity: 0;
}
.slider img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

@media screen and (width <= 720px){


}

@media screen and (width <= 400px){

}

@media screen and (height < 600px){

}