Snippets: Custom Sidebar Header Width

@media only screen and (min-width: 960px) {
    body.wpex-has-vertical-header #site-header { width: 400px !important; }
    body.wpex-has-vertical-header.full-width-main-layout #wrap { padding-left: 400px !important; }
}
All CSS snippets should be added via a child theme's style.css file or using the built-in Custom CSS panel.