.text {
    position: absolute;
    width: 450px;
    left: 50%;
    margin-left: -225px;
    height: 40px;
    top: 50%;
    margin-top: -20px;
}

.word {
    position: absolute;
    width: 80px;
    opacity: 0;
}

.letter {
    display: inline-block;
    position: relative;
    transform: translateZ(25px);
    transform-origin: 50% 50% 25px;
}

.letter.out {
    transform: rotateX(90deg);
    transition: transform 0.32s cubic-bezier(0.55, 0.055, 0.675, 0.19);
}

.letter.behind {
    transform: rotateX(-90deg);
}

.letter.in {
    transform: rotateX(0deg);
    transition: transform 0.38s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}