body {
    font-family: "Gill Sans", sans-serif;
    margin: 0;
    padding: 0;
    background-color: #242729;
}

header {
    background-color: #333333;
    color: #fff453;
    padding: 20px 0;
}

.header-container {
    width: 80%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

nav ul li {
    display: inline;
    margin-left: 20px;
}

nav ul li a {
    text-decoration: none;
    color: #fff436;
    position: relative;
    transition: all 0.3s ease;
}

nav ul li a::before,
nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    background-color: #ffffff;
    transition: all 0.3s ease;
}

nav ul li a::before {
    top: -5px;
    left: 0;
}

nav ul li a::after {
    bottom: -5px;
    right: 0;
}

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

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

.dropdown {
    position: relative;
    display: inline-block;
}
    
.dropdown-content {
    display: none;
    position: absolute;
    background-color: #333333;
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
    z-index: 1;
}
    
.dropdown-content a {
    color: black;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
}
    
.dropdown-content a:hover {
    background-color: #333333;
}
    
.dropdown:hover .dropdown-content {
    display: block;
}

a:link,
a:visited {
    color: #ffffff;
    text-decoration: none;
}