body {
  margin:0;
}
html, body, div, header, footer, main, section, article, p, h1, h2, h3, h4, h5, h6, ul, ol, li, dl, dt, dd, pre, code, img, blockquote, q, canvas, form, label, fieldset {
  box-sizing: border-box;
  vertical-align: top;
  font-family: 'Lato', sans-serif;
  font-size: 10px;
  color: black;
}
header:after,
main:after,
footer:after {
  content: ".";
  display: block;
  clear: both;
  visibility: hidden;
  line-height: 0;
  height: 0; 
}
h1,h2,h3,h4,h5,h6 {
  margin-top: 2rem;
}
h1 {
  font-size: 3.4rem;
}
h2 {
  font-size: 2rem;
}
h3 {
  font-size: 1.5rem;
}
ul {
  list-style: inside disc;
}
ul li,
p {
  font-size: 1.5rem;
}

header, main, footer {
  padding: 1rem;
}
header img {
  float: left;
}
header h1 {
  margin: 4rem 250px;
}

main {
  background: url('/img/bg-oval.svg') center top;
  background-size:100% 100%
}
main img {
  float: left;
  width: 30%;
}
main article {
  margin-left: 30%;
}
main article section {
  max-width: 50rem;
  margin: 2rem auto;
  padding: 1rem;
  border: 1px dotted grey;
  font-style: italic;
}
main article section h3 {
  margin-top: 0;
}