iText 7 Display a html string variable inside a pdfpcell

Question

I am using iText7 to create a PDF in C#. I want to parse a string variable that has HTMLand inline style tags and place it into a PdfPCell, with the styling in effect. I'm building a PDF to display user comments in a PdfPTable. I am able to display them but some of the style tags are ignored. Here's an example of one of the tags that are in the comment variable.

<strong style="background-color: rgb(255, 255, 0);">

The strong works, but the style tag is completely ignored. I want the text to be highlighted.

Here's part of the code I'm using now...

foreach (var comment in comments.UserComments)
{
    List<IElement> parsedComment = HTMLWorker.ParseToList(new StringReader(comment.Comment), null);
    foreach (var element in parsedComment)
    {
        cell.AddElement(element);
        cell = new PdfPCell(cell)
        { PaddingBottom = 5 };
    }
    commentsTable.AddCell(cell);
}

comment.Comment is the string variable parameter that contains the HTML tags.

And this is where I'm trying to parse, or convert, the HTML string to add to the cell...

List<IElement> parsedComment = HTMLWorker.ParseToList(new StringReader(comment.Comment), null);

Then I tried rewriting it like below but am getting a conversion error on cell.AddElement(element);

IList<iText.Layout.Element.IElement> parsedComment = HtmlConverter.ConvertToElements(comment.Comment);
foreach (var element in parsedComment)
{
    cell.AddElement(element);
    cell = new PdfPCell(cell)
    { PaddingBottom = 5 };
}
commentsTable.AddCell(cell);

Looking for suggestions on how to accomplish this.