Brine Bottom Navigation Stretch

The secondary navigation bar only goes to the content inset of the website. I need it to fill the whole page as the banner image does. Anyone have some css? Or ideas? I've tried everything.

www.roc360.com

Hi @AnastasiaG

Do you mean like this?

.Header-nav--secondary {
                                   left: 0;
                                   position: fixed;
}