Blame for style.css

body {
  padding: 0;
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.55;
}
.card { max-width: 720px; padding: 0 2px; }
h2 { font-size: 17px; margin: 18px 0 6px; }
p { margin: 0 0 10px; }
ul { margin: 0 0 10px; padding-left: 20px; }
a { color: #2a7a46; }