@font-face { font-family: 'Roboto'; src: url('fonts/roboto-regular.ttf') format('truetype'); /* Safari, Android, iOS */ } @font-face { font-family: 'Roboto Light'; src: url('fonts/roboto-light.ttf') format('truetype'); /* Safari, Android, iOS */ } * { margin: 0; padding: 0; font-family: 'Roboto', sans-serif; outline: none; } html, body, #root, #app { width: 100%; height: 100%; } button { background: none; border: none; }