.header__logo-wrap {
    display: block;
}
.header__main-second-logo {
    text-align: center;
}

.header__main-second-logo img {
    width: auto;
    height: 40px;
    display: inline-block;
}

@media (max-width: 640px) {
    .header__main-second-logo {
        display: none;
    }
}