body {
  background-color: #fff;
  color: #0073ca;
  font-family: "Open Sans", sans-serif;
  font-size: 15px;
  padding: 30px;
  font-size: 18px;
}

header img {
  width: 180px;
}

main {
  margin: 50px auto;
  width: 1170px;
}

main div.title {
  font-weight: bold;
  text-align: center;
}

.content {
  padding: 10px;
}

.content p.title {
  font-weight: bold;
  text-align: center;
}

.content .topics p {
  color: #0073ca;
  text-align: justify;
  font-size: 18px;
}

.content .topics p a {
  text-decoration: underline;
  color: #0073ca;
}

.content .topics p button {
  color: #0073ca;
  background-color: transparent;
  border: none;
  font-size: 18px;
  text-decoration: underline;
  cursor: pointer;
}