.keyboard-box{
    margin:auto !important;
    margin-top:1em !important;
    margin-bottom:1em !important;
    max-width:600px;
    background:white;
    border-radius: 10px!important;
    box-shadow:0 0 10px rgba(0,0,0,0.4);
}

.keyboard-box img{
    margin:auto;
    display:block;
    padding: 5px;
}