JSFiddle - React, Tailwind, and code Playground

HTML

<div class="gdr_wrapper">
                    <table id="details_gdr">
                        <tr>
                            <th>G</th>
                            <th>D</th>
                            <th>R</th>
                        </tr>
                        <tr>
                            <th>0/2</th>
                            <th>1/3</th>
                            <th>1/2</th>
                        </tr>
                    </table>
                </div>

CSS

#details_gdr {
    height: 50px;
    line-height: 25px !important;
    margin-top: 3px;
}

#details_gdr tbody tr:not(:last-child) {
    height: 25px;
    border-bottom: 1px solid #D0E0EA;
}

#details_gdr tbody tr th:not(:last-child) {
    border-right: 1px solid #D0E0EA;
}

#details_gdr tbody tr th {
    width: 28px;
    text-align: center !important;
}