.container {
    border: 2px solid rgb(75 70 74);
    border-radius: 0.5em;
    padding: 20px;
    width: 100%;
    font: 1.2em sans-serif;

    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    grid-gap: 20px;
    place-items: center;
}

.container > * {
    padding: 10px;
    border: 2px solid rgb(95 97 110);
    border-radius: 0.5em;
    margin: 0;
}

.container .cssbox_thumb {
    transition: transform 0.25s ease, filter 0.25s ease;
    transform-origin: center center;
}
.container .cssbox_thumb:hover {
    transform: scale(1.08);
    filter: brightness(1.05);
}