Reference: start_html - Perl

start_html

print $query->start_html(['title', 'email', 'base', 'attribute='value'])

Generates <HTML> and <BODY> tags.
- title
- The title of the page.
- email
- The author's email address.
- base
- Whether to use a <BASE> tag in the header.
- attribute='value'
- Specifies an attribute to the <BODY> tag.
  Using named parameters, the syntax is:
```
print $query->start_html(-title=>'title', -author=>'email_address', -base=>'true', -xbase=>'url', -meta=>{'metatag1'=>'value1', 'metatag2'=>'value2'}, -script=>'$script', -onLoad=>'$function', -onUnload=>'$function', -attribute=>'value');
```
  - -title=>'title'
  - Specifies the title of the page.
  - -author=>'email_address'
  - Specifies the author's email address.
  - -xbase=>'url'
  - Provides an HREF for the <BASE> tag. Default is the current location.
  - -meta=>{'metatag1'=>'value1', ... }
  - Adds arbitrary meta information to the header as a reference to a hash. Valid tags are:
    - keywords
    - Keywords for this document.
    - copyleft
    - Description for this document.
  - attribute=>'value'
  - Specify an attribute to the <BODY> tag.
  - -script=>'$script'
  - Specify a JavaScript script to be embedded within a <SCRIPT> block.
  - -onLoad=>'$function'
  - Browser should execute the specified function upon entering the page.
  - -onUnload=>'$function'
  - Browser should execute the specified function upon leaving the page.