Regarding CSS to make part of menu bardifferent color

Please help I am working on my new website https://www.megaservices.com.au/ I would like to please know the custom css code I can add to make two of my main pages listed in the menu bar (Multi Service Discount) and (Stand By Rates) always be the color orange in other words I want those two parts in the menu orange even if the mouse is not over that part of the menu I want the words (Multi Service Discount) and (Stand By Rates) to always be orange in the menu bar so they stand out what custom css would I need to add to achieve this please??