.bounce {
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-box;
    display: -webkit-flex;
    display: box;
    display: flexbox;
    display: flex;
    align-items: center;
    justify-content: center;
    /*color: white;*/
    /*width: 100%;*/
    /*height: 100%;*/
    white-space: nowrap;
    -webkit-transform: scale(0.8);
}

.letter {
    animation: bounce 0.75s cubic-bezier(0.05, 0, 0.2, 1) infinite alternate;
    display: inline-block;
    transform: translate3d(0, 0, 0);
    margin-top: 0.5em;
    text-shadow: rgba(255, 255, 255, 0.4) 0 0 0.05em;
    color: red;
    font-size: 10px;
    font-weight: 700;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

    .letter:nth-child(1) {
        animation-delay: 0s;
    }

    .letter:nth-child(2) {
        animation-delay: 0.0333333333s;
    }

    .letter:nth-child(3) {
        animation-delay: 0.1333333333s;
    }

    .letter:nth-child(4) {
        animation-delay: 0.2333333333s;
    }

    .letter:nth-child(5) {
        animation-delay: 0.3333333333s;
    }

    .letter:nth-child(6) {
        animation-delay: 0.4333333333s;
    }

    .letter:nth-child(7) {
        animation-delay: 0.5333333333s;
    }

    .letter:nth-child(8) {
        animation-delay: 0.6333333333s;
    }

    .letter:nth-child(9) {
        animation-delay: 0.7333333333s;
    }

    .letter:nth-child(10) {
        animation-delay: 0.8333333333s;
    }

    .letter:nth-child(11) {
        animation-delay: 0.9333333333s;
    }

@keyframes bounce {
    0% {
        transform: translate3d(0, 0, 0);
        text-shadow: rgba(255, 255, 255, 0.4) 0 0 0.05em;
    }

    100% {
        transform: translate3d(0, -10px, 0);
        text-shadow: rgba(255, 255, 255, 0.4) 0 1em 0.35em;
    }
}