/// <summary>;
/// Gets the CSS style definition for a <see cref="FontAwesome">icon</see>
/// with a particular <see cref="FontAwesomeStyle">style</see>. Please note
/// that not all styles work with every icon.
/// </summary>
///
public static string GetCss(this FontAwesome icon, FontAwesomeStyle style)
{
return($"{style.GetCss()} {icon.GetCss()}");
}