Google Fontsの
マテリアルアイコンの使い方

読み込みタグ

<link href="https://fonts.googleapis.com/css?family=Material+Icons|Material+Icons+Outlined|Material+Icons+Round|Material+Icons+Sharp|Material+Icons+Two+Tone" rel="stylesheet">

疑似要素で

.class::before {
  font-family: 'Material Icons';
  content: 'e8dc';
}
Font-familyで表示できなかったりするので注意
/* Filled */
font-family: 'Material Icons';

/* Outlined */
font-family: 'Material Icons Outlined';

/* Rounded */
font-family: 'Material Icons Round';

/* Sharp */
font-family: 'Material Icons Sharp';

/* Two Tone */
font-family: 'Material Icons Two Tone';
©al2co