How to put phone icon as placeholder

Question

I tried using font awesome hex code but it didn't display.
The code - https://code.sololearn.com/W6s6ZGIIp3oZ

Answer 1

add
style="font-family:Arial, FontAwesome"

<input type="text" name="Number" placeholder="&#xf2b9" style="font-family:Arial, FontAwesome" maxlength="11" pattern="\d{11}">

Answer 2

Thanks. I'll do so now