Font Awesome
The iconic font and CSS toolkit
CDN 4.7.0
1 <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" integrity="sha384-wvfXpqpZZVQGK6TAh5PVlGOfQNHSoD2xbE+QkPxCAFlNEevoEH3Sl0sibVcOQVnN" crossorigin="anonymous">
CDN Font Awesome Free 6.6.0
1 <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@6.6.0/css/fontawesome.min.css" integrity="sha384-NvKbDTEnL+A8F/AA5Tc5kmMLSJHUO868P+lDtTpJIeQdGYaUIuLr4lVGOEA1OcMy" crossorigin="anonymous">
Icons 4.7
fa-check 
fa-trash 
fa-trash-o 