.sizeDiv {
    font-size: 25px;
    display: block;
}

.errorMessage {
    font-size: 25px;
    color: red;
    display: block;
}

.firstCells {
    display: none;
}

table {
    border-collapse: collapse;
}

table, th, td {
    margin-left: auto;
    margin-right: auto;
    border: 2px solid black;
    font-size: 100%;
    table-layout: fixed;
    width: 90%;
    text-align: center;
}

.startGame {
    display: none;
}

.alliveCell {
    color: black;
    background-color: black;
    background-repeat: no-repeat;
}

.deadCell {
    color: white;
    background-color: white;
    background-repeat: no-repeat;
}

.stepsNumberStyle {
    color: red;
}