form.formulario{
    display: flex;
    justify-content: center;
    align-items: center;
    flex-flow: column;

    border-radius: 10px 10px 10px 10px;
    -moz-border-radius: 10px 10px 10px 10px;
    -webkit-border-radius: 10px 10px 10px 10px;

    background-color: #00000076;

    padding: 20px;
}

form.formulario label.etiqueta{
    display: block;

    width: 100%;
    height: auto;

    color: #fff;
}

form.formulario input{
    width: 100%;
}