.sponsor-list {
    display: flex;
    align-content: stretch;
    justify-content: space-evenly;
    align-items: center;
}

.sponsor-item {
    flex: 1;
}

.sponsor-item img {
    width: 100%;
    max-width: 100%;
    transform: scale3d(1, 1, 1);
    transition: .3s ease-out;
    transition-property: opacity, transform, filter;
}

.sponsor-item:hover img {
    transform: scale3d(1.1, 1.1, 1);
}

.sponsor-item span {
    display: block;
    text-align: center;
}