.fa-bounce {
    display: inline-block;
    position: relative;
    -moz-animation: fa-bounce 0.7s infinite linear;
    -o-animation: fa-bounce 0.7s infinite linear;
    -webkit-animation: fa-bounce 0.7s infinite linear;
    animation: fa-bounce 0.7s infinite linear;
}

@-webkit-keyframes fa-bounce {
    0% {
        top: 0;
    }
    50% {
        top: -0.2em;
    }
    70% {
        top: -0.3em;
    }
    100% {
        top: 0;
    }
}

@-moz-keyframes fa-bounce {
    0% {
        top: 0;
    }
    50% {
        top: -0.2em;
    }
    70% {
        top: -0.3em;
    }
    100% {
        top: 0;
    }
}

@-o-keyframes fa-bounce {
    0% {
        top: 0;
    }
    50% {
        top: -0.2em;
    }
    70% {
        top: -0.3em;
    }
    100% {
        top: 0;
    }
}

@-ms-keyframes fa-bounce {
    0% {
        top: 0;
    }
    50% {
        top: -0.2em;
    }
    70% {
        top: -0.3em;
    }
    100% {
        top: 0;
    }
}

@keyframes fa-bounce {
    0% {
        top: 0;
    }
    50% {
        top: -0.2em;
    }
    70% {
        top: -0.3em;
    }
    100% {
        top: 0;
    }
}