/* Keep instructional labels readable instead of squeezing them into thumbnails. */
.nb-block.nb-block--completion {
    flex-direction: column;
    align-items: stretch;
}
.nb-block.nb-block--completion .nb-block-diagram,
.nb-block.nb-block--completion.read-completed .nb-block-diagram {
    width: min(100%, 440px);
    max-width: 100%;
    align-self: center;
    transition: none;
}
.nb-block--completion .nb-block-diagram svg { height: auto; }
.nb-block--completion .reveal-content-box { overflow-wrap: anywhere; }