* {
  box-sizing: border-box;
  margin: 0px;
  padding: 0;
}
html, body {
  height: 100%;
}
body {
  margin: 30px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';
  color: black;
  font-size: 18px;
  line-height: 150%;
}

h1 { font-size: 28px; margin: 0px 0 20px 0; }
h2 { font-size: 20px; margin: 40px 0 10px 0; }
p { font-size: 18px; margin: 20px 0 20px 0; }
ol { margin: 0 0 0 40px; line-height: 130%; }
li { margin: 10px 0 10px 0; line-height: 130%; }