@mixin css
{
    div.matrix-content-renderer
    {
        .grid-container-css-grid
        {
            display: grid;
        }

        .grid-header-css-grid
        {
            font-weight: bold;
        }

        .grid-header-css-grid,
        .grid-body-css-grid,
        .grid-footer-css-grid,
        .grid-header-row-css-grid,
        .grid-content-row-css-grid,
        .grid-footer-row-css-grid
        {
            display: grid;
            grid-column: 1/-1;
            grid-template-columns: subgrid;
        }
    }
}