time.icon {
    font-size: 1em; /* change icon size */
    display: block;
    position: relative;
    width: 7em;
    height: 7em;
    background-color: #fff;
    margin: 0 auto;
    border-radius: 0.6em;
    box-shadow: 0 1px 0 #bdbdbd, 0 2px 0 #fff, 0 3px 0 #bdbdbd, 0 4px 0 #fff, 0 5px 0 #bdbdbd, 0 0 0 1px #bdbdbd;
    overflow: hidden;
    -webkit-backface-visibility: hidden;
    -webkit-transform: rotate(0deg) skewY(0deg);
    -webkit-transform-origin: 50% 10%;
    transform-origin: 50% 10%;
}

    time.icon * {
        display: block;
        width: 100%;
        font-size: 1em;
        font-weight: bold;
        font-style: normal;
        text-align: center;
    }

    time.icon strong {
        position: absolute;
        top: 0;
        padding: 0.4em 0;
        color: #fff;
        background-color: #bf972d;
        border-bottom: 1px dashed #1f1f1f;
        box-shadow: 0 2px 0 #bf972d;
    }

    time.icon em {
        position: absolute;
        bottom: 0.3em;
        color: #fd9f1b;
    }

    time.icon span {
        width: 100%;
        font-size: 2.0em;
        padding-top: 35px;
        color: #2f2f2f;
    }

    time.icon:hover, time.icon:focus {
        -webkit-animation: swing 0.6s ease-out;
        animation: swing 0.6s ease-out;
    }

@-webkit-keyframes swing {
    0% {
        -webkit-transform: rotate(0deg) skewY(0deg);
    }

    20% {
        -webkit-transform: rotate(12deg) skewY(4deg);
    }

    60% {
        -webkit-transform: rotate(-9deg) skewY(-3deg);
    }

    80% {
        -webkit-transform: rotate(6deg) skewY(-2deg);
    }

    100% {
        -webkit-transform: rotate(0deg) skewY(0deg);
    }
}

@keyframes swing {
    0% {
        transform: rotate(0deg) skewY(0deg);
    }

    20% {
        transform: rotate(12deg) skewY(4deg);
    }

    60% {
        transform: rotate(-9deg) skewY(-3deg);
    }

    80% {
        transform: rotate(6deg) skewY(-2deg);
    }

    100% {
        transform: rotate(0deg) skewY(0deg);
    }
}