.image-block {
    max-width: var(--block-max-width);
    text-align: center;
    font-style: italic;
    font-size: 0.875rem;
    color: var(--text-grey);
    margin: var(--block-margin) auto 0 auto;
    position: relative;
}

.image-block--100 {
    width: 100%;
}
.image-block--75 {
    width: 75%;
}
.image-block--66 {
    width: 66%;
}
.image-block--50 {
    width: 50%;
}
.image-block--33 {
    width: 33%;
}
.image-block--25 {
    width: 25%;
}
@media screen and (max-width: 768px){
    .image-block--100,
    .image-block--75,
    .image-block--66,
    .image-block--50,
    .image-block--33,
    .image-block--25 {
        width: 100%;
    }
}

.image-block__figure-image {
    margin-left: auto;
    margin-right: auto;
}

.image-block__figure-caption {
    text-align: center;
    font-size: 0.8rem;
    font-style: italic;
    position: absolute;
    right: 0;
    bottom: -2.4rem;
    background-color: var(--background-secondary);
    padding: 1rem 2rem;
    margin: 1rem;
    opacity: 0.9;
}