/*
Theme Name: Flatsome Child
Description: This is a child theme for Flatsome Theme
Author: UX Themes
Template: flatsome
Version: 3.0
*/
/*************** ADD CUSTOM CSS HERE.   ***************/
/*************** RESET CSS   ***************/
@font-face{
    src: url(font/Mulish.ttf);
    font-family: mulish;
}
@font-face{
    src: url(font/Mulish-Black.ttf);
    font-family: mulish-b;
}
@font-face{
    src: url(font/Number.ttf);
    font-family: number-font;
}
@font-face{
    src: url(font/sglogo-b.ttf);
    font-family: sglogo-b;
}
h1,h2,h3,h4,h5, h6 strong{ 
	font-family: sglogo-b !important;
}
p {
	font-size: 16px;
	color: black;
	text-align:justify;
	margin-bottom: 7px;
	font-family: Mulish;
}
@media only screen and (max-width: 48em) {
/*************** ADD MOBILE ONLY CSS HERE  ***************/
}
@font-face{
   
    src: url(Arimo-VariableFont_wght.ttf);
    font-family: Arimo-italic;
});
    font-family: sglogo-b;
}
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0-beta3/css/all.min.css" integrity="GIÁ_TRỊ_MỚI_CỦA_BẠN" crossorigin="anonymous">