body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #023471; 
    transition: background-color 0.5s; 
}

#counter {
    font-size: 200px; 
    transition: transform 0.5s;
    padding: 20px;
    border-radius: 15px;
    font-family: 'Times New Roman', Times, serif; 
}

.one {
    color: #F2FFFF;
    background-color: #023471;
}

.two {
    color: #023471;
    background-color: #F2FFFF;
}

.three {
    color: #F2FFFF;
    background-color: #023471;
}