.abacus_image {
    --size: 0.3;
    width: calc(var(--size) * 1946.91px);
    height: calc(var(--size) * 2 * 213.49px);
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
    margin: auto auto 2.5em auto;
}