$georgia: Georgia, Cambria, "Times New Roman", Times, serif;
$helvetica: "Helvetica Neue", Helvetica, Arial, sans-serif;
$lucida-grande: "Lucida Grande", Tahoma, Verdana, Arial, sans-serif;
$monospace: "Bitstream Vera Sans Mono", Consolas, Courier, monospace;
$verdana: Verdana, Geneva, sans-serif;

$georgia: Georgia, Cambria, "Times New Roman", Times, serif;
$helvetica: "Helvetica Neue", Helvetica, Roboto, Arial, sans-serif;
$lucida-grande: "Lucida Grande", Tahoma, Verdana, Arial, sans-serif;
$monospace: "Bitstream Vera Sans Mono", Consolas, Courier, monospace;
$verdana: Verdana, Geneva, sans-serif;

Add Roboto to the `$helvetica` font stack for Android support
Add Roboto to the `$helvetica` font stack for Android support

Most Android devices do not have either Helvetica Neue or Helvetica available,
but as of Android 4.0 "Ice Cream Sandwich" there is a look-alike font called
Roboto that serves as a decent stand-in for the (better) Helvetica fonts.
