style.css

*{
    margin: 0px;
    padding: 0px;
}
body{
    background-color: #548687;
    text-align: center;
}
.container{
    height: 70vh;
    display: flex;
    justify-content: center;
    justify-content: space-evenly;
}
.game{
    height: 60vmin;
    width: 60vmin;
    display: flex;
    flex-wrap: wrap;
    gap: 1.5vmin;
}
.box{
    height: 18vmin;
    width: 18vmin;
    border-radius: 1rem;
    border: none;
    box-shadow: 0 0 1rem rgba(0, 0, 0, 1);
    font-size: 8vmin;
    color: #b0413e;
    background-color: #ffffc7;
}
#reset-btn{
    padding: 1rem;
    font-size: 1.25rem;
    background-color: #191913;
    color: white;
    border-radius: 1rem;
    border: none;
}
.turn-msg{
    height: 100px;
    width: 250px;
    border-radius: 1rem;
    border: none;
    background-color: white;
    font-size: 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: Arial, Helvetica, sans-serif;
}
.player-name{
    color: #b0413e;
    font-weight: 700;
}
#new-btn{
    padding: 1rem;
    font-size: 1.25rem;
    background-color: #191913;
    color: white;
    border-radius: 1rem;
    border: none;
    margin-top: 20px;
    margin-bottom: 20px;
}
h1{
    margin-bottom: 10px;
}

@media screen and (max-width: 576px) {
    .container{
        flex-direction: column;
        margin: 0px auto;
        align-items: center;
    }
    .turn-msg{
        height: 50px;
        width: 150px;
        font-size: 20px;
    }
}

@media screen and (min-width: 577px) and (max-width: 992px) {
    .container{
        flex-direction: column;
        margin: 0px auto;
        align-items: center;
    }

    .turn-msg{
        height: 100px;
        width: 200px;
        font-size: 30px;
    }
    #msg-O, .game, #msg-X{
        margin-bottom: 20px;
    }
}