div.grids{display:grid}div.grids>div{padding:1rem 3rem}div#grid-0{border:1px solid #666;grid-template-columns:repeat(2,1fr)}div#grid-0>div{border:1px solid #666}div#grid-1{padding:1px;background:#666;grid-template-columns:repeat(2,1fr);gap:1px}div#grid-1>div{background:#fff}div#grid-2{border:1px solid #666;grid-template-columns:repeat(2,1fr);gap:0}div#grid-2>div{border-right:1px solid #666;border-top:1px solid #666}div#grid-2>div:nth-child(2n+2){border-right:0}div#grid-2>div:nth-child(1),div#grid-2>div:nth-child(2){border-top:0}div#grid-3{border:1px solid #666;border-top:0;display:grid;grid-template-columns:repeat(2,1fr)}div#grid-3>div.interim{display:contents}div#grid-3>div.interim>div{padding:1rem 3rem;border-right:1px solid #666;border-top:1px solid #666}div#grid-3>div.interim>div:nth-child(2n+2){border-right:0}div#grid-3>div.interim:nth-child(odd)>div{background-color:#ddd}div#grid-3>div.interim:nth-child(even)>div{background-color:#fefefe}div.oddeven-1>div:nth-child(6n+3),div.oddeven-1>div:nth-child(6n+4){background-color:#fefefe}div.oddeven-1>div:nth-child(6n+1),div.oddeven-1>div:nth-child(6n+2),div.oddeven-1>div:nth-child(6n+5),div.oddeven-1>div:nth-child(6n+6){background-color:#ddd}