title: How to change the border color below the navigation bar?
body: <p>Can anyone advise me on how the border below the navigation bar can be changed?</p>
  
  <p><img src="https://i.stack.imgur.com/tXmVz.png" alt="enter image description here"></p>
  
  <p>I would like to change it from the current black light to a softer color.
  Appreciate any help here</p>