.letter-roll{position:relative;display:inline-block;overflow:hidden;background:transparent;margin:0;vertical-align:top}.single-letter{position:relative;display:inline-block;transition:transform .4s cubic-bezier(.25,.46,.45,.94);transform:translateY(0)}.single-letter:after{content:attr(data-char);position:absolute;left:0;top:100%;color:currentColor;white-space:pre}.letter-up:hover .single-letter{transform:translateY(-100%)}