.c3-network-feed {
    margin: 0 auto;
}

.c3-network-feed__sizer,
.c3-network-feed__item {
    width: calc(25% - 20px);
}

.c3-network-feed__item {
    display: block;
    margin: 0 0 20px 0;
    padding: 0;
}

.c3-network-feed__image {
    display: block;
    width: 100%;
    max-width: none;
    height: auto;
    opacity: 0;
    transition: opacity 300ms;
}

.c3-network-feed__image--loaded {
    opacity: 1;
}

@media (max-width: 1024px) {
    .c3-network-feed__sizer,
    .c3-network-feed__item {
        width: calc(33.33% - 20px);
    }
}

@media (max-width: 768px) {
    .c3-network-feed__sizer,
    .c3-network-feed__item {
        width: calc(50% - 20px);
    }
}

@media (max-width: 480px) {
    .c3-network-feed__sizer,
    .c3-network-feed__item {
        width: calc(100% - 20px);
    }
}