* {
    box-sizing: border-box;
}

table {
    width: 100%;
}

table, td, tr, th {
    border: 1px solid #999;
    border-collapse: collapse;
    text-align: left;
}

td, tr, th {
    padding: 0.5em;
}

th {
    background: #eee;
    font-weight: bold;
}

@media screen and (max-width: 750px) {

    table, tr, td, th {
        padding: 0;
    }

    table {
        border: none;
    }

    thead {
        display: none;
    }

    tr {
        border:none;
        float: left;
        width: 100%;
        margin-bottom: 1em;
    }

    td {
        float: left;
        width: 100%;
        padding: 0.5em;
        margin-bottom: 0.5em;
    }

    td::before {
        content: attr(data-label);
        word-wrap: break-word;
        width: 35%;
        padding: 0 0.5em 0.5em 0.5em;
        margin-bottom: 1.5em;
        float: left;
        font-weight: bold;
    }
}