@charset "utf-8";

html {
  background-image: url("background.jpg");
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center center;
}

body {
  font-family: Verdana, Geneva, sans-serif;
  color: #c0d0e0;
  background-color: rgba(0, 0, 0, 0.7);
  width: 90%;
  margin-left: auto;
  margin-right: auto;
  
}

header img {
  width: 100%;
  height: auto;
  max-height: 250px;
  object-fit: cover;
  display: block;
}

h1, h2 {
  text-shadow: 4px 6px 5px gray;
  color: #c0d0e0;
  font-weight: bold;
}

nav ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
}

nav li {
  display: block;
  width: 20%;
  float: left;
}

nav a {
  display: block;
  background-color: #336699;
  line-height: 2.8em;
  text-align: center;
  text-decoration: none;
  color: #ffcc00;
}

nav a:hover {
  background-color: #ffcc00;
  color: #ffffff;
}

main {
  padding: 20px;
  margin-top: 35px;
}

main > img {
  float: right;
  max-width: 50%;
  padding: 25px;
}

body > footer {
  background-color: #336699;
  color: rgba(255, 255, 255, 0.7);
  font-weight: bold;
  font-size: 0.9em;
  line-height: 3em;
  text-align: center;
  margin-top: 10px;
  padding: 10px;
  clear: both;
}