prog8/docs/source/_static/css/customize.css

.wy-nav-content {
    max-width: 1000px;
}

/* override table width restrictions */
.wy-table-responsive table td, .wy-table-responsive table th {
    white-space: normal;
}

.wy-table-responsive {
    margin-bottom: 24px;
    max-width: 100%;
    overflow: visible;
}