*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
main{
    max-width: 450px;
    height: 800px;
    margin: 30px auto;
    background-color: black;
    display: flex;
    align-items: center;    
}
.elemento{
    width: 100%;
    height: 100%;
    padding: 30px;
    display: flex;
    flex-direction: column;
}
picture>img{
    width: 100%;
}
.desktop{
    display: none;
}
.b{
    color: white;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-evenly;
    align-items: center;
    text-align: center;
    /* border: 3px solid white; */
}
.numeros{
    display: flex;
    flex-direction: column;
    gap: 25px;
}
@media (min-width:900px) {
    main{
        min-width: 900px;
        max-width: 1200px;
        height: 700px;

    }
    .mobile{
        display: none;
    }
    .desktop{
        display: block;
    }
    .elemento{
        flex-direction: row-reverse;
        justify-content: center;
        align-items: center;
        /* border: 2px solid white; */
        height: 70%;
        
    }
    .a{
        flex: 1;
    }   
    .b{
        flex: 1;
    }
}