Why won't the font size increase inside my <td>

Question

I have a PDF that is being generated by TCPDF in php. The whole thing looks great, but I cant increase the size of font in any section of the table that is generated. My CSS is not great, but any idea what I am doing wrong?

CSS:

   <style>
       }
       table.first {
           color: #003300;
           font-family: helvetica ;
           font-size: 8pt;
           border-left: 1px solid black;
           border-right: 1px solid black;
           border-top: 1px solid black;
           border-bottom: 1px solid black;
           background-color: white;
       }
       td {
           border: 1px solid black;
           background-color: white;
       }
   </style>

HTML:

    <table class="first" cellpadding="0" cellspacing="0">
     <tr>
        <td width="50%"><B>1a.</b> Name of Insurance Plan (<B>OFFICE USE ONLY</b>):
                                        <BR>
                                        <BR><BR>
                                        <BR><B>1b.</b> Insurance I.D. Number (<B>UTAH ONLY</b> - Check with the patient and if they have Utah Medicaid and include the Medicaid I.D. Number.):
                                        <BR><BR><B><span style='font-size: 24pt;'>$medicaidid,</span></b>
                                        <BR><BR><B>1c.</b> Patient Name (Last Name, First Name) & DOB (Typed out, example: January 01, 1901):
                                        <BR><BR><B>$name</b>
                                        <BR><B>$dob</b><BR></td>
        <td width="50%"><B>2a.</b><BR>&nbsp;&nbsp;&nbsp;<img src="lilogo.png" style="width:8500%;" height="75">
                                <BR><B>2b.</b> Appointment Number: <BR><BR>        <B>$appid</b></td>

     </tr>
   </table>

Answer 1

remove the } under the style tag

This is your code:

<style>
       }
       table.first {
           color: #003300;
           font-family: helvetica;

Try this instead:

<style>
       table.first {
           color: #003300;
           font-family: helvetica;

Answer 2

I dont know what are you trying to say, but on jsfiddle.net there is no issue regarding font size as for example when I tried,

*{
    font-size:20px;
}

it worked good or if you have any other issue, please be clear !