Hi Rashida,
Sure, here.
The conflicting CSS is related to this line:
<i class="fab fa-linkedin" aria-hidden="true" title="LinkedIn"></i>
Fon Awesome 4 uses this CSS:
.fa-linkedin:before {
content: "\f0e1";
}
Font Awesome 5 uses this CSS (which is the new square icon):
.fa-linkedin:before {
content: "\f08c";
}
I created an override to switch the person Linkedin icon from IN to the IN square. This is how I discovered the conflict. Font Awesome 4 uses the class .fa-linkedin-square for the square icon, but they dropped the -square in FA5.
Kind regards,
John