Add transparent background to toolbar.

client/styles.css

@@ -208,6 +208,8 @@ html {
     left:5px;
     z-index:10;
     overflow: auto;
+    width: calc(100% - 20px);
+    background-color: rgba(245, 245, 245, 0.7)
 }
 .disabled_dock {
     opacity:0.5;