table{
    border-collapse: collapse;
}

td{
    width: 150px;
    height: 150px;
    border: 2px black solid;
    text-align: center;
    vertical-align: middle;
    font-size: 120px;
}

.o{
    color: red;
}

.x{
    color: blue;
}

#nyertes{
    font-weight: bold;
    font-size: larger;
}