body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(0deg,
     #2e355a,
     #46738d,
     #7acab2
    
    );
    user-select: none;
}
    .container {
        display: flex ;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 30px;
        background: #2b323b;
        padding: 40px 60px;
    }
    h2 {
        font-size: 3em;
        color: aliceblue;
    }
    .reset {
        padding: 15px 20px;
        background-color: aliceblue;
        border: none;
        font-size: 1.5em;
        cursor: pointer;
    }
    .reset:focus {
        background-color: rgb(204, 211, 218)
    }
    .game{
        width: 430px;
        height: 430px;
        display: flex;
        gap: 10px;
        flex-wrap: wrap;

    }
    .item{
        width: 100px;
        height: 100px;
        display: flex;
        align-items: center;
        justify-content: center;
        background-color: #fffcd4;
        font-size: 3em;
        position: relative;
        transform: rotateY(180deg);
        transition: 0.50s;
    }
    .item::after {
content: "";
background-image: url(../../img/semtitulo.png);
position: absolute;
inset: 0;

transition: 0.50s;
transform: rotateY(0deg);
backface-visibility: hidden;

    }
.item.boxOpen {
    transform: rotateY(0deg);
}
    .item.boxOpen::after {
transform: rotateY(180deg);
    }