.sliderContainer {
    display: flex;
    height: 370px;
    overflow: hidden;
    border-radius: 10px;
}

.sliderItem {
    flex: 1;
    margin: 0 5px;
    background-size: cover;
    background-position: center;
    transition: flex 0.7s ease;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    overflow: hidden;
    border-radius: 10px;
    cursor: pointer;
    position: relative;
}
.sliderItem:hover {
    flex: 2;
}
.sliderItem:not(:hover) {
    flex: 0.5;
}
.sliderContainer:not(:hover) .sliderItem:first-child {
    flex: 2;
}
.easycommerceGrayscale {
    -webkit-filter: grayscale(100%);
    filter: grayscale(100%);
}
.sliderItem:hover .easycommerceGrayscale {
    -webkit-filter: grayscale(0%);
    filter: grayscale(0%);
}
.sliderContainer:not(:hover) .sliderItem:first-child .easycommerceGrayscale {
    -webkit-filter: grayscale(0%);
    filter: grayscale(0%);
}

.testimonialContent {
    opacity: 0;
    width: 100%;
    display: none;
}
.sliderItem:hover .testimonialContent {
    display: block;
    opacity: 1;
}
.sliderContainer:not(:hover) .sliderItem:first-child .testimonialContent {
    display: block;
    opacity: 1;
}