While using font awesome, the icons showed as a unknown character? Exactly like this □□□□.

Question

What should I do for fixing this problem!?

Answer 1

If you will transfer it on a server you can use the cdn ;)
Otherwise check your path and calls are correct

Answer 2

Try using the CDN :
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.3.1/css/all.css" integrity="sha384-mzrmE5qonljUremFsqc01SB46JvROS7bZs3IO2EmfFsd15uHvIt+Y8vEf7N7fWAU" crossorigin="anonymous">
And try as well to display your website through an apache server (wamp/mamp).

Answer 3

Now it is in offline mode. After being completed I want to transfer it on a server. I mean that I'm using the desktop mode of font awesome.