.brucpopup #newsletter_subscription{
    width: 500px;
    margin-top: 20px;
    margin-left: auto;
    margin-right: auto;
}
.brucpopup #newsletter_subscription form{
    display: flex;
    justify-content: center;
    gap: 9px;
    flex-wrap: wrap;
}
.brucpopup #newsletter_subscription input{
    flex: 0 0 auto;
    width: 120px;
    border: 1px solid #aaa;
    border-radius: 5px;
    padding: 5px;
}
.brucpopup #newsletter_subscription button, .brucpopup #newsletter_subscription .btn{
    color: #fff;
    border: none;
    border-radius: 5px;
    padding: 6px 10px;
}
@media screen and (max-width: 600px) {
    .brucpopup #newsletter_subscription{
        width: auto;
    }
    .brucpopup #newsletter_subscription input{
        width: 100%;
    }
}