QPrintPreviewDialog doesn't display html doc correctly

WhatIf

Hi,

I want to print some info from HTML table but the info doesn't display correctly in print preview dialog. The headers don't display in one line, I tried to chage the size property many times buts still. And there are missing letters, Jill displays only J l and Smith displays as Sm th.

Here is an snapshot of the print preview dialog:

https://s11.postimg.org/mg6hy4tar/print_preview.jpg

and the HTML code is:

doc = "<!DOCTYPE html>"
            "<html>"



            "<body>"
"<font size=\"72\">"
            "<table style=\"width:100%\">"

              "<tr>"
                "<th>Firstname</th>"
                "<th>Lastname</th>"
                "<th>Age</th>"
              "</tr>"
              "<tr>"
                "<td>Jill</td>"
                "<td>Smith</td>"
                "<td>50</td>"
              "</tr>"
              "<tr>"
                "<td>Eve</td>"
                "<td>Jackson</td>"
                "<td>94</td>"
              "</tr>"
              "<tr>"
                "<td>John</td>"
                "<td>Doe</td>"
                "<td>80</td>"
              "</tr>"

            "</table>"
"</font>"
            "</body>"
            "</html>";

I also tried addig

            "<head>"
            "<style>"
            "table, th, td {"
                "font-size:small;"
            "}"
            "th, td {"
                "padding: 5px;"
            "}"
            "th {"
                "text-align: left;"
            "}"
            "</style>"
            "</head>"

I got only 3 letters per page.

    QTextDocument  *document = new QTextDocument ;
    document->setHtml(doc);
    document->print(p);