At first add icons to your page. Icons exist in public/fonts/.
Add fonts to your server and add next styles to your css, before replacing
[path-to-yor-fonts]/ real path on your server.
@font-face {
font-family: 'new_player_icons';
src: url("[path-to-yor-fonts]/new_player_icons.eot");
src:
url("[path-to-yor-fonts]/new_player_icons.eot#iefix")
format("embedded-opentype"),
url("[path-to-yor-fonts]/new_player_icons.woff")
format("woff"),
url("[path-to-yor-fonts]/new_player_icons.ttf")
format("truetype"),
url("[path-to-yor-fonts]/new_player_icons.svg#fontello")
format("svg");
font-weight: normal;
font-style: normal;
}