html, body {
  height: 100%;
  margin: 0;
}

body {
  background-color: white;
  color: black;
  font-family: Tahoma, Verdana, sans-serif;
  max-width: 800px;
  margin: auto;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.articles {
  padding-left: 30px;
  padding-right: 30px;
  flex-grow: 1;
}

main {
}

footer {
  text-align: center;
  padding: 12px;
  opacity: 0.6;
  overflow: hidden;
  font-size: smaller;
  margin-top: 30px;
  flex-shrink: 0;
}

.logo {
  display: block;
  margin: 10px 0 5px 0;
  height: 55px;
}

.top {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.topnav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  background-color: rgb(16, 72, 98);
  overflow: hidden;
  margin-top: 7px;
  border-radius: 5px;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .top {
    justify-content: center;
  }
  
  .topnav {
    justify-content: center;
  }
}

.topnav a {
  color: white;
  text-decoration: none;
  padding: 7px 10px;
  display: block;
}

.topnav a:hover {
  background-color: rgb(23, 105, 143);
}

.articles h1 {
  opacity: 0.5;
  font-size: 40px;
}

.articles a:hover {
  background-color: rgba(164, 183, 199, 0.61);
  text-decoration: underline;
}

.articles p {
  opacity: 0.8;
}

.articles ul {
  list-style-type: none;
  padding: 0;
}