

@media screen and (max-width: 600px) {
    .tbl1 {
        border: 0;
    }

    .tbl1 caption {
        font-size: 1.3em;
    }

    .tbl1 thead {
        border: none;
        clip: rect(0 0 0 0);
        height: 1px;
        margin: -1px;
        overflow: hidden;
        padding: 0;
        position: absolute;
        width: 1px;
    }

    .tbl1 tr {
        border: 1px solid gainsboro;
        display: block;
        margin-bottom: .625em;
        border-radius: 5px;
    }

    .tbl1 td {
        border: none;
        display: block;
        font-size: .9em;
        text-align: right;
        width: 95%;
    }

    .tbl1 td::before {
        /*
        * aria-label has no advantage, it won't be read inside a table
        content: attr(aria-label);
        */
        content: attr(data-label);
        float: left;
        font-weight: bold;
        text-transform: uppercase;
    }

    .tbl1 td:last-child {
        border-bottom: 0;
    }

    .pseudo-content:after{
        content: "-";
        opacity: 0;
    }
}

