keys.css

div.keyboard{
    position:absolute;
    top:0px;
    height:0px;
    width:100%;
    z-index: 9999;
    overflow-x:scroll;
    -webkit-overflow-scrolling: touch;
    -webkit-transition: height 0.25s ease-in-out;
    -moz-transition: height 0.25s ease-in-out;
    -o-transition: height 0.25s ease-in-out;
    transition: height 0.25s ease-in-out;
}

div.keyboard.visible{
    height:60px;
}

div.keyboard .key {
    top: 18px;
    position: relative;
    opacity: 0.97;
    background: #ffffff;
    padding: 18px 27px;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    border-radius: 4px;
    color: #000000;
    font-size: 13px;
    font-family: Georgia, serif;
    text-decoration: none;
    vertical-align: middle;
    cursor:pointer;
    white-space: nowrap;
}
/*screws up iOS
div#keyboard .key:hover {
    background: #1fa5ff;
    color: #ffffff;
}*/
div.keyboard .key:active {
    background: #1f1dff;
}