.et_pb_code_0{body{font-family:sans-serif;text-align:center;background:#f4f4f9}#sudoku-container{display:grid;grid-template-columns:repeat(9,40px);grid-template-rows:repeat(9,40px);gap:1px;justify-content:center;margin-top:20px;background-color:#333;padding:2px;width:fit-content;margin-left:auto;margin-right:auto}input{width:40px;height:40px;text-align:center;font-size:1.2rem;border:none;outline:none}input:nth-child(3n){border-right:2px solid #000}input:nth-child(9n){border-right:none}input:nth-child(n+19):nth-child(-n+27),input:nth-child(n+46):nth-child(-n+54){border-bottom:2px solid #000}input:focus{background-color:#e0e0ff}button{margin-top:20px;padding:10px 20px;cursor:pointer}}