body {
  background-color: #ede0be;
  color: #000000;
}
img {
  vertical-align: bottom;
}
a:link {
  color: #0000ee;
}
a:visited {
  color: #551a8b;
}
a:active {
  color: #ff0000;
}

header {
  text-align: center;
}

nav {
  margin: 10px 0;
}

ul#menu {
  margin: 0;
  padding: 0;
}

ul#menu li {
  list-style: none;
  margin: 12px 2% 32px;
  padding: 0;
  width: 21%;
  height: 64px;
  float: left;
}

ul#menu a {
  width: 1%;
  height: 64px;
  display: table-cell;
  text-align: center;
  vertical-align: middle;
  text-decoration: none;
  color: #000000;
  border-radius: 20px;
}

ul#menu a#menu1 {
  background-color: #2ecc71;
}
ul#menu a#menu1:hover {
  background-color: #27ae60;
}

ul#menu a#menu2 {
  background-color: #e74c3c;
}

ul#menu a#menu2:hover {
  background-color: #c0392b;
}

ul#menu a#menu3 {
  background-color: #3498db;
}

ul#menu a#menu3:hover {
  background-color: #2980b9;
}

ul#menu a#menu4 {
  background-color: #f1c40f;
}

ul#menu a#menu4:hover {
  background-color: #f39c12;
}

main {
  clear: both;
  margin: 0 2%;
  padding: 10px 2%;
  background-color: #f8f2e4;
}

footer {
  text-align: center;
  margin: 10px;
}

.converter {
  font-weight: bold;
  color: #ff4545;
}