added zoff image to embed thingy

static/css/embed.css

@@ -121,6 +121,19 @@
   overflow-y:scroll;
 }
 
+#zoffbutton{
+  cursor:pointer;
+  position: absolute;
+    top: -47px;
+    left: 10px;
+    background-image: url('static/images/squareicon_small.png');
+    width: 50px;
+    height: 50px;
+    background-position: center;
+    background-size: 135%;
+    background-repeat: no-repeat;
+}
+
 .progress{background-color:rgba(0,0,0,0) !important;}
 
 .indeterminate {
@@ -129,6 +142,7 @@
 
 #controls
 {
+  position: relative;
     opacity:0;
     height:32px;
     background-color:grey;