Your html still has some problems, but some are easily fixed by simply revising the quoting. Some may frown, and with reason, at this use of a ' heredoc' but it "just works" for a one-off:
#!/usr/bin/perl
use 5.012;
my $protein = "chuck steak";
my $heredoc = <<END
<table border="1" width="50%" bgcolor="#CCFFFF">
<tr><td><b> Peptide sequence frame 1</b></td></tr>\n
<tr><td>$protein </td> <td>also 'walnuts'</td></tr>
</table>
END
;
print $heredoc;
OUTPUT:
<table border="1" width="50%" bgcolor="#CCFFFF">
<tr><td><b> Peptide sequence frame 1</b></td></tr>
<tr><td>chuck steak </td> <td>also 'walnuts'</td></tr>
</table>
Note the newline at the end of line 09; your empty tr></tr> will provoke complaints from some validators.
Better, however, to devote a couple hours to familiarizing yourself with CSS1 and 2. And better yet to follow the broad guidance provided by blue_cowdawg ( above ) and to use such CSS constructs as "max-width: nn%" to assure that the wraps work (...err, semi-work.....) based on the user's current screen width.
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
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Want more info? How to link
or How to display code and escape characters
are good places to start.
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