body, nav {
    margin: 0;
    padding: 0;
}

body {
    font-family: Tahoma, Verdana, sans-serif;
}

pre {
    white-space: pre-wrap;
    border: 1px solid #aaa;
    background-color: #222;
    color: #fff;
    padding: 1em;
}

header {
    margin: 0;
    padding: 12px 0;
    font-size: 1.4em;
    text-align: center;
}

header #offline {
    display: none;
}
header #offline.on {
    position: absolute;
    right: 1em;
    display: inline-block;
    padding: 6px;
    font-size: 14px;
    background-color: #FFBA08;
}

main, footer { padding: 0 1em; }

nav { background-color: #9A031E; }
nav ul { 
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-around;
    align-items: stretch;
    margin: 0;
    padding: 0;
}
nav li { display: inline-block; }
nav a { 
    display: inline-block;
    padding: 1em;
    color: #FFF;
    text-decoration: none;
}
nav a:hover { background-color: #000; }

form label { display: block; }
form input[type="submit"] {
    display: inline-block;
    margin-top: 0.5em;
    padding: 0.5em 1em;
}

a#retry {
    position: relative;
    display: inline-block;
    font-size: 0.85em;
    text-decoration: none;
    text-transform: uppercase;
    padding: 0.8em 1em 0.8em 3em;
    background-color: #F77F00;
    color: #FFF;
}
a#retry:before {
    position: absolute;
    top: 3px;
    left: 11px;
    content:  "\27F2";
    font-size: 25px;
}