style.css

body {
    background-color: black;
}

#game {
    padding: 0;
    margin: auto;
    display: block;
    width: 1280px;
    height: 720px;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    font-family: 'Press Start 2P', cursive;
}

/* press-start-2p-regular - latin */
@font-face {
    font-family: 'mainfont';
    font-style: normal;
    font-weight: 400;
    src: url('fonts/press-start-2p-v9-latin-regular.eot'); /* IE9 Compat Modes */
    src: local(''),
         url('fonts/press-start-2p-v9-latin-regular.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */
         url('fonts/press-start-2p-v9-latin-regular.woff2') format('woff2'), /* Super Modern Browsers */
         url('fonts/press-start-2p-v9-latin-regular.woff') format('woff'), /* Modern Browsers */
         url('fonts/press-start-2p-v9-latin-regular.ttf') format('truetype'), /* Safari, Android, iOS */
         url('fonts/press-start-2p-v9-latin-regular.svg#PressStart2P') format('svg'); /* Legacy iOS */
  }