material deisgn icons code example
Example 1: google material icons
<i class="material-icons">face</i>
Example 2: material icons angular
<mat-icon class="mat-icon-rtl-mirror" svgIcon="thumb-up"></mat-icon>
<i class="material-icons">face</i>
<mat-icon class="mat-icon-rtl-mirror" svgIcon="thumb-up"></mat-icon>