Hi @hjhatch,
Try following code in Appearance=> Customize=> Additional CSS box:
#header-left-menu {
border: 1px solid #000;
}
@media screen and (max-width: 990px) {
.mobile-menu-one #site-branding {
width: 670px;
}
}
@media screen and (max-width: 767px) {
.mobile-menu-one #site-branding {
width: 590px;
}
}
@media screen and (max-width: 700px) {
.mobile-menu-one #site-branding {
width: 490px;
}
}
@media screen and (max-width: 600px) {
.mobile-menu-one #site-branding {
width: 450px;
}
}
@media screen and (max-width: 540px) {
.mobile-menu-one #site-branding {
width: 390px;
}
}
@media screen and (max-width: 480px) {
.mobile-menu-one #site-branding {
width: 320px;
}
}
@media screen and (max-width: 400px) {
.mobile-menu-one #site-branding {
width: 260px;
}
}
@media screen and (max-width: 319px) {
.mobile-menu-one #site-branding {
width: 100%;
}
}
If this does not work, please post in your site url.
Regards,
Pratik