body {
    margin: 0px;
}

.buttonDownload {
    display: inline-block;
    position: relative;
    padding: 10px 25px;
    background-color: #4CC713;
    color: white;
    font-family: sans-serif;
    text-decoration: none;
    font-size: 0.9em;
    text-align: center;
    text-indent: 15px;
}

    .buttonDownload:hover {
        background-color: #333;
        color: white;
    }

    .buttonDownload:before, .buttonDownload:after {
        content: ' ';
        display: block;
        position: absolute;
        left: 15px;
        top: 52%;
    }

    /* Download box shape  */
    .buttonDownload:before {
        width: 10px;
        height: 2px;
        border-style: solid;
        border-width: 0 2px 2px;
    }

    /* Download arrow shape */
    .buttonDownload:after {
        width: 0;
        height: 0;
        margin-left: 3px;
        margin-top: -7px;
        border-style: solid;
        border-width: 4px 4px 0 4px;
        border-color: transparent;
        border-top-color: inherit;
        animation: downloadArrow 2s linear infinite;
        animation-play-state: paused;
    }

    .buttonDownload:hover:before {
        border-color: #4CC713;
    }

    .buttonDownload:hover:after {
        border-top-color: #4CC713;
        animation-play-state: running;
    }

/* keyframes for the download icon anim */
@keyframes downloadArrow {
    /* 0% and 0.001% keyframes used as a hackish way of having the button frozen on a nice looking frame by default */
    0% {
        margin-top: -7px;
        opacity: 1;
    }

    0.001% {
        margin-top: -15px;
        opacity: 0;
    }

    50% {
        opacity: 1;
    }

    100% {
        margin-top: 0;
        opacity: 0;
    }
}