table { border-collapse: collapse; width: 100%; border: 1px solid #000; /* Add a 1px border to the entire table */ } th, td { border: 1px solid #000; /* Add a 1px border to table cells (th and td) */ padding: 8px; text-align: left; } th { background-color: #f2f2f2; /* Add a background color to header cells if desired */ }