#header {
    border: 5px;
    border-radius: 5px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: black;
    height: 200px;
    font-family: 'Courier New', Courier, monospace;
    color: whitesmoke
}

#welcome {
    text-align: center;
    font-family: 'Courier New', Courier, monospace;
}

body {
    background-image: url(assets/img/homepage_background.jpg);
    background-position: center;
    background-repeat: no-repeat;
}

menu {
    border: 5px;
    border-radius: 5px;
    list-style-type: none;
    margin: 0;
    width: 250px;
    background-color: black;
    height: 100%;
    position: absolute;
    overflow: auto;
    padding: 0px;
    display: flex;
    flex-direction: column;
    color: green;
    font-family: Courier New;
}

footer {
    position: static;
    bottom: 20px;
    text-align: center;
}

#warning {
    text-transform: uppercase;
    text-align: center;
    color: red;
}

li a {
    display: inline-block;
    transition: transform 0.1s ease-in-out;
    text-decoration: none;
    padding: 8px 16px;
}

li a:link {
    color: green
}

li a:visited {
    color: green
}

li a:hover {
    color: greenyellow;
    transform: translateX(30px);
}

li a::after {
    content: ">>>";
    position: absolute;
    left: -30px;
    opacity: 0;
    transform: translateX(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

li a:hover::after {
    opacity: 1;
    transform: translateX(5px);
}