Add viewer controls.. Rotation works and will cache val per sequence

css/60_photos.css

@@ -21,6 +21,7 @@
 .photo-wrapper img {
     width: 100%;
     height: 100%;
+    overflow: hidden;
 }
 
 
@@ -151,3 +152,36 @@
 .osc-attribution a:hover {
     color: #77ddff;
 }
+
+.osc-controls-wrap {
+    text-align: center;
+    position: absolute;
+    top: 10px;
+    width: 100%;
+    z-index: 10;
+}
+
+.osc-controls {
+    display: inline-block;
+    z-index: 10;
+}
+
+.osc-controls button {
+    height: 18px;
+    width: 18px;
+    background: rgba(0,0,0,0.65);
+    color: #eee;
+    border-radius: 0;
+}
+.osc-controls button:first-of-type {
+    border-radius: 3px 0 0 3px;
+}
+.osc-controls button:last-of-type {
+    border-radius: 0 3px 3px 0;
+}
+.osc-controls button:hover,
+.osc-controls button:active,
+.osc-controls button:focus {
+    background: rgba(0,0,0,0.85);
+    color: #fff;
+}