@font-face {
  font-family: 'Roboto';
  src: url('Roboto-Black.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, 
                 "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif,
                 "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #212529;
    text-align: left;
    background-color: #fff;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Roboto', sans-serif;
    font-weight: 900;
}