     @svg = d3.select(@el.get(0)).insert('svg', ':first-child')
       .attr('width', @width)
       .attr('height', @height)
+      .style('z-index', '1000')
 
     # Position the canvas "under" the SVG element
     if @el.css('position') != 'absolute' and @el.css('position') != 'relative'

      position: 'absolute'
      top: "#{@margins.top}px"
      left: "#{@margins.left}px"
      'z-index': '-1'

    # Animation / Transitions
    @animation =

        tick.bottomEl.css('opacity', tick.opacity) if @hasAxis('bottom')
        tick.topEl.css('opacity', tick.opacity) if @hasAxis('top')

  # Draws the visualization in the plot's canvas.
  # @param delta The current x offset to apply to all elements when rendering. This number
  #   will be 0 when the plot is not animating and negative when it is.
