public static IHtmlContent UseCoreStyleSheet(this RazorPage page)
{
var serviceLocation = page.Context.RequestServices.GetService <ServiceLocation>();
var builder = new HtmlContentBuilder()
.AppendHtml($"<meta name=\"theme-color\" content=\"#0082c9\">");
return(builder
.StyleSheet($"{serviceLocation.UI}/dist/Core.min.css"));
}