#fullscreen {
    background-color: var(--bg-transparencia);
    height: 100%;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
}

#alert {
    color: var(--text-color-alert);
    background-color: var(--bg-alert-color);
    padding: 1.5em;
    border-radius: 0.5em;
    margin-top: -10em;
}

#alert i {
    color: var(--color-icono-alert);
    display: flex;
    justify-content: center;
    font-size: 2.5em;
    margin-bottom: 0.3em;
}

#btn {
    font-size: 0.9em;
    font-weight: bold;
    margin-top: 1em;
    display: flex;
    justify-content: center;
    text-decoration: none;
}

#btn button {
    color: var(--color-texto-boton-alert);
    background-color: var(--bg-boton-color-alert);
    border-radius: 0.5em;
    border: none;
    cursor: pointer;
}

#btn button:hover {
    background-color: var(--bg-boton-color-alert-hover);
}

@media only screen and (max-width: 522px) {
    #alert {
        padding: 1em;
    }

    #alert i {
        font-size: 4em;
    }

    #btn {
        font-size: 1em;
    }
  }

  @media screen and (max-width: 458px) {
    #alert {
        padding: 0.5em;
    }
    
    #alert i {
        font-size: 3em;
    }

    #btn {
        font-size: 0.8em;
    }

  }