.book-divisibility-lab .book-foundation-controls{display:flex;gap:1rem;flex-wrap:wrap}.book-divisibility-lab label{display:flex;align-items:center;gap:.45rem}.book-divisibility-lab select{font:inherit;padding:.35rem .5rem;border:1px solid #b8c7b5;border-radius:.45rem;background:#fff}.book-div-place-value{margin:1rem 0;padding:.8rem;border-radius:.7rem;background:#f4f7ef}.book-div-digits{display:flex;justify-content:center;gap:.35rem}.book-div-digits span{display:grid;min-width:2.6rem;padding:.45rem .25rem;text-align:center;border:1px solid #9ab391;border-radius:.45rem;background:#fff}.book-div-digits b{font-size:1.25rem}.book-div-digits small{color:#536452}.book-div-place-value p{margin:.7rem 0 0;text-align:center;color:#40533f}