1. Tabler Icons

                            
    // ----------------------------------------------------
    // File: package/scss/style.scss
    // ----------------------------------------------------  
    
    @import "icons/tabler-icons/tabler-icons.css";
    
    // ----------------------------------------------------------------------
    
    <div class="list-group-horizontal">
      <i class="ti ti-mood-happy text-dark fs-6"></i>
      <i class="ti ti-mood-happy text-dark fs-7"></i>
      <i class="ti ti-mood-happy text-dark fs-8"></i>
      <i class="ti ti-mood-happy text-dark fs-9"></i>
      <i class="ti ti-mood-happy text-dark fs-10"></i>
    </div>