.conteiner {
    text-align: center;
    font-size: 16px;
}

.tabuleiro {
    display: grid;
    grid-template-columns: repeat(3, 120px);
    grid-gap: 5px;
    margin: 20px auto;
    justify-content: center;
}

.celula {
    width: 120px;
    height: 120px;
    background-color: darkgray;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 90px;
    font-weight: bold;
}

body {
    font-family: Arial, sans-serif;
}

header {
    background-color: #8AF;
    color: #FFF;
    padding: 20px;
}

footer {
    background-color: #8AF;
    color: #FFF;
    padding: 20px;
}

button {
    background-color: #39F;
    color: white;
    cursor: pointer;
    font-size: 18px;
    border: none;
    border-radius: 12px;
    padding: 10px 20px;
    margin-top: 5px;
}

button:hover {
    background-color: #17D;
}

.conteiner_jogo {
    width: 33%;
    float: left;
}

.img_personagem {
    opacity: 0.2;
}

#marcadorX {
    font-weight: bold;
    font-size: 60px;
    color: #FD0;
    margin: 20px;
}

#marcadorO {
    font-weight: bold;
    font-size: 60px;
    color: #F44;
    margin: 20px;
}