body {
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    Oxygen,
    Ubuntu,
    Cantarell,
    sans-serif;
  display: flex;
  justify-content: center;
  font-weight: 500;
  color: rgb(35, 35, 35);
  margin: 0;
  background-color: #f9f9f9;
}

main {
  width: 100%;
  max-width: 700px;
  box-sizing: border-box;

  padding: 40px;
  border: solid 3px rgba(0, 0, 0, 0.7);
  margin: 20px;
  background-color: #fff;
}

hr {
  width: 100%;
  max-width: 500px;
  height: 3px;
  background-color: black;
  border: none;
  margin: 0;
}

header,
section,
footer {
  margin-bottom: 24px;
}

article {
  margin-bottom: 12px;
}

h1 {
  font-size: 2rem;
  font-weight: 500;
  margin: 10px 0;
}

h2 {
  font-size: 16px;
  font-weight: 600;
  color: green;
  margin-top: 0;
  margin-bottom: 6px;
}

address {
  margin-top: 4px;
  font-style: normal;
  line-height: 1.5;
}

p {
  width: 100%;
  margin: 0;
  line-height: 1.5;
}

h3 {
  font-size: 16px;
  font-weight: 600;
  color: rgb(0, 106, 255);
  margin: 0 0 4px 0;
}

a {
  color: rgb(0, 106, 255);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}