body {
    font-family:Arial, Helvetica, sans-serif;
    display: flex;
   justify-content:center ;
    height: 100vh;
   align-items: center;
    background: linear-gradient( to right, blue, #000000);
    margin: 0;
}

.container {
   
    text-align: center;
    color: #ffffff;
    
   
}




.board {
    display: grid;
    grid-template-columns: repeat(3, 100px);
    grid-gap: 5px;
    margin: 20px auto;
    color: #000000;  
    
}


    
.cell {
    width: 100px;
    height: 100px;
    background-color: #fff;
    border: 2px solid #333;
    font-size: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

#message {
    font-size: 24px;
    margin: 20px 0;
}

#restartButton {
    font-size: 18px;
    padding: 10px 20px;
    cursor: pointer;
    background-color: blue;
    color: #fff;
    border: none;
    transition: background-color 0.9 ease-in-out;
    
    

}

#restartButton:hover{
    background-color:#001890;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transform: translateY(-2px);
}