Add Search Bar in Menubar Remove Border

Here is the link of my site.
https://www.hotmug.org/
How can I add a search-bar in my menubar?

Am am using this plugin.
https://www.ads-software.com/support/plugin/menubar

I want search box with color #ff4200
Am newbie, so please explain with details ??

And I also remove border of menubar.
I tried this code but nothing happens.
Any CSS tweak?

#menubar-2 {
	border: none;
}

[No bumping – especially after just 2 hours! If it’s that urgent, consider hiring someone.]