.tline {
                width: 0;
                height: 50px;
                border: 1px solid;
                display: inline-block;
                padding: 0;
                margin: 0;
            }
            .tspot {
                width: 50px;
                height: 50px;
                display: inline-block;
                padding: 0;
                margin: 0;
            }
            .thline {
                width: 170px;
                height: 0;
                border: 1px solid;
                padding: 0;
                margin: 0;
            }
            .tx::before {
                content: "X";
                font-size: 55px;
                color: blue;
            }
            .to::before {
                content: "O";
                font-size: 55px;
                color: red;
            }
            body {
                font-family: "Arial", sans-serif;
            }