       .attr('class', 'x label')
       .attr('text-anchor', 'middle')
       .attr('x', @graphWidth / 2)
-      .attr('y', @graphHeight + 40)
+      .attr('y', @graphHeight + 50)
       .text(@formatKey(@opts.axis1))
     
     # Set up y axis

    @graphWidth  = @opts.width - (@opts.margin.left + @opts.margin.right)

    @svg = @opts.selector.append('svg')
      .attr('width', @opts.width)
      .attr('height', @opts.height)
      .append('g')
        .attr('transform', "translate(#{@opts.margin.left}, #{@opts.margin.top})")
      

  constructor: (selector) ->
    super selector

    @opts.margin = @opts.margin or { left: 70, top: 20, bottom: 80, right: 20 }
    @opts.format = if @opts.format then d3.format(opts.format) else d3.format(',.02f')
    
    @opts.color = @opts.color or '#0172E6'
