portal header menu need to set in center of the page.

[praveen50]

Portal header menu  need to set in center of the page.

I have writtern below css code in header widget. Menu items are coming in center but when i zoom in its going to right side again. Need to fix constantly in center(if zoom in or zoom out).

[praveen50]

I have writtern below css code.

Now am getting menu items in center. But when i zoom in or zoomout changing to right side again

.navbar-nav
{
  padding-left:250px;
  vertical-align: middle;
    padding-left: 250px;
    max-width: 100%;
}