I've spent the day trying to incorporate CSS into a simple HTML file. Would someone please add some CSS code to this sample? 
#
#  PROGRAM:    popup_menu.cgi
#
#  PURPOSE:    Demonstrate (1) how to create a popup_menu form and
#        (2) how to determine the value selected by the user.
#
#  Created by alvin alexander, devdaily.com.
#

#-----------------------------------#
#  1. Create a new Perl CGI object  #
#-----------------------------------#

use CGI;
$query = new CGI;

#----------------------------------#
#  2. Print the doctype statement  #
#----------------------------------#
<style>
body {
    background-image: url("img_tree.png");
    background-repeat: no-repeat;
    background-position: right top;
    margin-right: 200px;
}
</style>
</body>

print $query->header;

print $query->h3("x");

#----------------------------------------------------#
#  3. Start the HTML doc, and give the page a title  #

print $query->start_html('My popup_menu.cgi program');

my @arr = qw(pasta hamburger salad pierogi chicken_cutlet);
if (!$query->param) {
    print $query->start_form;
    print $query->h4('Select a dinner entree:');
    print $query->popup_menu(-name=>'entrees',
                 -values=>[@arr],
                 -default=>'Veggies');
}
print $query->end_form;

my @arr = qw(cheese_cake cannoli apple_pie);
if (!$query->param) {

    print $query->start_form;
    print $query->h3('Select a desert entree:');
    print $query->popup_menu(-name=>'deserts',
                 -values=>[@arr],
                 -default=>'Veggies');
}
print $query->end_form;

print $query->end_html;

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In reply to add css to html code by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


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