.slider{
    position: relative;
    width: 100%;
    margin: auto;
    overflow: hidden;
}

.slider img {
    width: 500px;
    height: 500px;
    display: none;
    margin: auto;
    overflow: hidden;
}

img.displaySlide {
    display: block;
    animation: fade;
    animation-duration: 1.5s;
}

.slider button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    padding: 10px;
    cursor: pointer;
}

.prev {
    left: 0px;
}

.next {
    right: 0px;
}

@keyframes fade {
    from { opacity: 0; }
    to { opacity: 1; }
}