-<p><em>Purine/Pyrimidine Colours</em></p>
-<div align="center">
- <table width="200" border="1">
- <tr>
- <td bgcolor="#FF83FA">Purines <BR> A, G, R</td>
- <td bgcolor="#40E0D0">Pyrimidines <BR> C, U, T, Y</td>
- </tr>
- </table>
-</div>
+ <p>
+ <strong>Purine/Pyrimidine Colours</strong>
+ </p>
+ <div align="center">
+ <table width="200" border="1">
+ <tr>
+ <td bgcolor="#FF83FA">Purines <BR> A, G, R
+ </td>
+ <td bgcolor="#40E0D0">Pyrimidines <BR> C, U, T, Y
+ </td>
+ </tr>
+ </table>
+ </div>