font awesome icons not working

The Font Awesome Icons do not show when I add them on the menus.

Dear Becky,
Thanks for using our product,
Please give me link your site and your account of administrator via mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
I will check it and feedback your issue in here

Sent to you from Francis

Hi Becky,
Please do follow:
Step 1: Go to fontawesome.io/icons/ and find your icon that you want to use on your site.
Step 2: Copy this class as the image below: prntscr.com/fe2a50
Step 3: Go to the menu item and paste the icon as the image: prntscr.com/fe2atn
Please check on your site again, I test it and works fine
Thank you so much

What if i want to control the size of the icon

Hi,
Please go to .../modules/mod_jux_megamenucss3/assets/css/style.css and find line 638
and edit the " font-size" that you want as this code below:
#jux_megamenucss3 .js-megamenu .megamenu i.jux-fa{
font-size:12px;
}

Hi Becky,
If you like our product and support
Please write a review and vote 100point for each section for my product on JED:
extensions.joomla.org/extensions/extensi...omla-css3-mega-menu/
Thanks your review