Add maintenance notice about generating new map

Have to take the server down while map is generating. The minecraft overviewer 1.13 branch is abysmally slow generating a new map.
2018-08-21 20:20:04 -04:00
--- a/css/styles.css
+++ b/css/styles.css
@@ -130,3 +130,18 @@ ol li code {
  margin-top: 5px;
  margin-bottom: 0;
 }
+
+.maintenance-notice {
+  padding: 20px;
+  background: darkred;
+  color: white;
+}
+
+.maintenance-notice h3 {
+  margin: 0;
+  margin-right: 20px;
+}
+
+.maintenance-notice h3,span {
+  display: inline-block;
+}
--- a/index.html
+++ b/index.html
@@ -7,6 +7,10 @@
        <meta charset="UTF-8">
    </head>
    <body>
+        <div class="maintenance-notice">
+          <h3>Server is down</h3>
+          <span>ETA: 15 hours for generating a new Minecraft 1.13 map.</span>
+        </div>
        <div class="width-limit">
            <h1>Panic Shack - Minecraft Server</h1>
            <img src="img/bridge.jpg" alt="Screenshot from the Minecraft server of a bridge over a lake in a jungle biome">