* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
    font-size: 12px;
}

div#wrapper {
    display: flex;
    flex-direction: row;
    min-height: 100vh;
}

header {
    border-right: 1px solid darkblue;
    background-image: url("graphics/Blue Grid.gif");
    flex: 1 0 auto;
    max-width: 200px;
}

header img#header-logo {
    display: block;
    padding-bottom: 3px;
}

header ul#nav li {
    list-style-type: none;
}

header ul#nav li a{
    text-decoration: none;
    display: block;
    padding: 3px;
}

header ul#nav li:nth-child(2n+1) a {
    color: white;
    background-color: purple;
}

header ul#nav li:nth-child(2n+1) a:hover {
    color: black;
    background-color: lightgray;
}

header ul#nav li:nth-child(2n) a {
    background-color: mediumpurple;
    color: white;
}

header ul#nav li:nth-child(2n) a:hover {
    color: black;
    background-color: lightgray;
}

main {
    padding: 10px;
    width: 600px;
}

main ul {
    margin-bottom: 5px;
}

main ul li {
    list-style-position: inside;
}

main img {
    max-width: 100%;
}

main h1 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

main h2 {
    font-size: 1.25rem;
    margin-top: 5px;
}

main p {
    margin-bottom: 5px;
}

div.warning {
    background-color: #ff6961;
    border: 2px solid red;
    padding: 10px;
    text-align: center;
    color: darkred;
    margin: auto;
}

div.warning h2 {
    font-size: 2rem;
}

div.warning img {
    height: 300px;
}

.newsbar {
    background-color: yellow;
    color: black;
    white-space: nowrap;
    overflow: hidden;
    box-sizing: border-box;
    font-size: 1.2rem;
}
.newsbar p {
    display: inline-block;
    padding-left: 100%;
    animation: marquee 15s linear infinite;
}
@keyframes marquee {
    0%   { transform: translate(0, 0); }
    100% { transform: translate(-100%, 0); }
}