Table problems

Hello,

This is part of a templete code.
But the rows of each line aren’t aligned.
Help, please help me.

<h2><a href="<?php the_permalink() ?>"</a><?php echo $cat->cat_name; ?></h2></br>

				        <?php while (have_posts()) : the_post(); ?>
						<table cellspacing="0" cellpadding="0" border="1" width="100%" align="center">
						<tr>
							<td width="40%"><h3><a style="font-weight:normal !important;" href="<?php the_permalink() ?>"><?php the_title(); ?> :</h3></a></td>
							<td width="30%"><?php the_content(); ?></td>
							<td width="10%"><?php the_author(); ?></td>
							<td width="10%"><?php the_date(); ?> </td>
							<td width="10%"><?php the_category("," ); ?></td>
								</tr>
						</table>