body {
    margin: 0;
    font-family: "Open Sans", sans-serif;
}

.titulo {
    margin-top: 20px;
}

.form-text {
    padding: 5px 10px;
    font-size: 20px;
    border-radius: 0px;
    width: 30%;
    height: 40px;
}

.form-text-2 {
    padding: 5px 10px;
    font-size: 20px;
    border-radius: 0px;
    width: 30%;
    height: 40px;

}

.responsive {
    display: inline;
}


.open>.dropdown-toggle.btn-primary {
    color: #fff;
    background-color: #646a6f !important;
    border-color: #1e262d;
    /*set the color you want here*/
}

@media screen and (max-width: 600px) {
    .btn {
        padding: 5px 10px;
        font-size: 24px;
        border-radius: 0px;
        width: 100%;
        height: 40px;
    }

    .titulo {
        margin-top: 40px;
    }

    .responsive {
        display: none;
    }
}