.sentence-in-a-box{perspective:1000px;}.sentence-in-a-box .inner{transition:transform .8s;transform-style:preserve-3d;position:relative;}.sentence-in-a-box .inner button{background:inherit;border:0;}.sentence-in-a-box.flip-box.open .inner{transform:rotateY(180deg);}.sentence-in-a-box .front,.sentence-in-a-box .back{position:absolute;width:100%;height:100%;-webkit-backface-visibility:hidden;backface-visibility:hidden;opacity:.85;}.sentence-in-a-box .back{transform:rotateY(180deg);}.sentence-in-a-box .back .sentence-text,.sentence-in-a-box .back .sentence-number{color:#fff;}.sentence-in-a-box .sentence-number{font-size:2.5rem;margin-top:1rem;margin-right:2rem;font-weight:500;}.sentence-in-a-box .sentence-text{width:70%;font-size:1.5rem;line-height:1.875rem;color:#000;}@media(min-width:768px){.sentence-in-a-box .sentence-number{font-size:1.5rem;margin-top:0;margin-right:.5rem;}.sentence-in-a-box .sentence-text{font-size:1rem;line-height:1.3rem;}}@media(min-width:992px){.sentence-in-a-box .sentence-number{font-size:2.1rem;margin-top:.5rem;margin-right:1rem;}.sentence-in-a-box .sentence-text{font-size:1.1rem;line-height:1.6rem;}}@media(min-width:1200px){.sentence-in-a-box .sentence-number{font-size:2.4rem;margin-top:1rem;margin-right:2rem;}.sentence-in-a-box .sentence-text{font-size:1.2rem;line-height:1.75rem;}}