simpler.css

body {
    /* max-width: 700px; */
    /* padding: 0 10px; */
    /* margin: 20px auto; */
    /* line-height: 140%; */
    font-family: "Open Sans", Arial, Helvetica, sans-serif;
    /* font-size: 18px; */
}

h1,h2,h3,h4,h5,h6 {
    line-height: 1;
}

/* Fonts from Google */
@font-face {
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 400;
  font-display: fallback;
  src: local('Open Sans'), local('Open Sans Regular'), local('OpenSans-Regular'), url(fonts/opensans.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2212, U+2215;
}
@font-face {
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 700;
  font-display: fallback;
  src: local('Open Sans Bold'), local('OpenSans-Bold'), url(fonts/opensansbold.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2212, U+2215;
}
@font-face {
  font-family: 'Open Sans';
  font-style: italic;
  font-weight: 400;
  font-display: fallback;
  src: local('Open Sans Italic'), local('OpenSans-Italic'), url(fonts/opensansitalic.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2212, U+2215;
}