add web server support to mirror role

roles/mirror/base/files/static/mirror.css

@@ -0,0 +1,84 @@
+
+body {
+  margin: 0;
+  font-family: Arial,sans-serif;
+  color: #172B4D;
+  position: absolute;
+  left: 0px;
+  right: 0px;
+  background: #f2f2f2;
+}
+
+#navbar {
+  padding-top: 15px;
+  background-color: #000;
+}
+
+.mirrorlist-button {
+  background-color: #000;
+  color: #fff;
+  padding: 16px;
+  font-size: 16px;
+  border: none;
+  cursor: pointer;
+}
+.mirrorlist {
+  position: absolute;
+  top: 10px;
+  right: 100px;
+  display: inline-block;
+  float: right;
+}
+.mirrorlist-content {
+  display: none;
+  position: absolute;
+  background-color: #f9f9f9;
+  min-width: 160px;
+  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
+  padding: 12px 16px;
+  z-index: 1;
+}
+.mirrorlist-content a {
+  display: block;
+  padding: 10px 10px;
+}
+.mirrorlist:hover .mirrorlist-content {
+  display: block;
+}
+
+.hide {
+  display: none;
+}
+
+// directory listings
+#content {
+  margin: 50px;
+}
+
+h1 {
+  font-size: 20px;
+  padding: 0px 50px;
+}
+
+table {
+  padding: 0px 50px;
+}
+
+a {
+  text-decoration: none;
+  color: #172b4d;
+}
+
+a:hover {
+  text-decoration: underline;
+}
+
+td, th {
+  padding: 5px 60px;
+  padding-left: 0;
+  text-align: left;
+}
+
+hr {
+  border: 1px solid #172b4d;
+}