public async Task<PageAnalysisResult> Analyze(Uri pageUrl, HtmlDocument html)
{
var cssInfos = new List<CssUsageInfo>();
if (!String.IsNullOrWhiteSpace(html.GetInlineStyles()))
{
cssInfos.Add(AnalyzeInternalStyles(pageUrl, html));
}
cssInfos.AddRange(await AnalyzeExternalStyles(pageUrl, html));
var filteredCssInfos = cssInfos.Where(z => z.UnusedSelectors.Any()).ToList();
return new PageAnalysisResult(pageUrl, filteredCssInfos)
{
InternalLinks = html.GetInternalLinks(pageUrl)
};
}