header {
    color: #344e41;
    background-color: #588157;
    padding: 10px 0;
}

header nav ul {
    list-style: none;
    text-align: center;
    margin: 0;
    padding: 0;
}

header nav ul li {
    display: inline;
    margin: 0 20px;
}

header nav ul li a {
  position: relative;
  text-decoration: none;
  color: #3a5a40;
}

header nav ul li a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0%;
  height: 2px;
  background: #FFDB58;
  transition: width 0.3s ease;
}

header nav ul li a:hover::after {
  width: 100%;
}

body{
  color: #d6ccc2;
  font-family: "comfortaa";
  font-size: 200%;
  background: #344e41;
}