epub to azw3 conversion and Extra CSS

Section8 · 02-05-2015, 11:48 PM

I'm using calibre 2.18. I have recently acquired a kindle PW2 and am in the process of converting my epub library to azw3. I have been experimenting with using the "Look & Feel/Extra CSS" field to add "html { margin-left: -30px; margin-right: -30px; }" to the azw3 css, which can reduce the margins on the kindle.

In almost every epub I convert to azw3, the "Extra CSS" appears to be ignored, and does not appear anywhere in any of the css files in the output azw3. No matter what css snippet I put in the "Extra CSS" box, it does not appear anywhere in the output azw3. However, in a very few cases, something stranger heppens:

1 - A third css file - 0003.css - is produced in the output azw3 (most conversions seem to only produce 2 css files). The 0003.css file does contain the "Extra CSS" from the conversion dialog.
2 - An html table of contents page is generated as the last html/text file in the output azw3's spine. This html toc at the end of the spine is not present in the input epub and is the only html file in the azw3 that links to the 0003.css stylesheet with the "Extra CSS". None of the other html/text files in the output azw3 link to the 0003.css sheet.

I guess this html toc is related to the "table of contents" settings in the conversion dialog. I've made sure I don't have anything set there and that I press the "Restore defaults" button before setting the "Extra CSS" and starting the conversion. Below is the log from a conversion that produces this extra toc. Does anyone have any idea what's going on here?

Spoiler:

gbm · 02-06-2015, 07:09 PM

Quote:

Originally Posted by Section8

I'm using calibre 2.18. I have recently acquired a kindle PW2 and am in the process of converting my epub library to azw3. I have been experimenting with using the "Look & Feel/Extra CSS" field to add "html { margin-left: -30px; margin-right: -30px; }" to the azw3 css, which can reduce the margins on the kindle.

In almost every epub I convert to azw3, the "Extra CSS" appears to be ignored, and does not appear anywhere in any of the css files in the output azw3. No matter what css snippet I put in the "Extra CSS" box, it does not appear anywhere in the output azw3. However, in a very few cases, something stranger heppens:

1 - A third css file - 0003.css - is produced in the output azw3 (most conversions seem to only produce 2 css files). The 0003.css file does contain the "Extra CSS" from the conversion dialog.
2 - An html table of contents page is generated as the last html/text file in the output azw3's spine. This html toc at the end of the spine is not present in the input epub and is the only html file in the azw3 that links to the 0003.css stylesheet with the "Extra CSS". None of the other html/text files in the output azw3 link to the 0003.css sheet.

I guess this html toc is related to the "table of contents" settings in the conversion dialog. I've made sure I don't have anything set there and that I press the "Restore defaults" button before setting the "Extra CSS" and starting the conversion. Below is the log from a conversion that produces this extra toc. Does anyone have any idea what's going on here?

Spoiler:

Try:

Code:

body { margin-left: -30px; margin-right: -30px; }

luck
bernie

Section8 · 02-06-2015, 08:36 PM

I've tried other css there - no matter what, it doesn't seem to make into the css of the converted azw3.

I can get around it using the calibre editor afterwards to put it in the css manually, but it would be more convenient to get the css updated as part of the conversion.

gbm · 02-06-2015, 10:28 PM

Quote:

Originally Posted by Section8

I've tried other css there - no matter what, it doesn't seem to make into the css of the converted azw3.

I can get around it using the calibre editor afterwards to put it in the css manually, but it would be more convenient to get the css updated as part of the conversion.

I think you will have to ask Kovid to change the page setup to allow negative values in left and right margin for AZW3.

bernie

Do a search I think I remember somebody doing this.

Section8 · 02-06-2015, 10:58 PM

The specific css and margins are not my issue here. That css was just an illustration.

My issue is that regardless of the css snippet I put in the "Extra CSS" tab of the conversion dialog, it either does not appear at all in the css of the converted azw3, or it is in a css file that is linked by only one html file (the last) and has no effect on the rest of the book.

kovidgoyal · 02-06-2015, 11:05 PM

Extra css is not going to work for body/html margins. Those are controlled by the page layout section of the conversion dialog.

As for allowing negative margins there, it's not going to happen, negative values are already used to signify that conversion should not set any values at all. Negative margins are not a sufficiently widespread use case to merit changing that. You'll have to stick to modifying them by hand, post conversion.

kovidgoyal · 02-06-2015, 11:07 PM

Quote:

Originally Posted by Section8

The specific css and margins are not my issue here. That css was just an illustration.

My issue is that regardless of the css snippet I put in the "Extra CSS" tab of the conversion dialog, it either does not appear at all in the css of the converted azw3, or it is in a css file that is linked by only one html file (the last) and has no effect on the rest of the book.

Remember that extra css is subject to CSS cascading rules. If the book you are converting has more specific CSS rules, they will win over extra css. Use the !important modifier in your extra css.

And also remember that conversion flattens css, so you will not see your unmodified css anywhere, it will have been split up and distributed into the various classes.

Section8 · 02-06-2015, 11:35 PM

Ok - as a random example, I downloaded this epub from the MR library: https://www.mobileread.com/forums/sho...d.php?t=251459 and imported it into calibre.

Then: open the conversion dialog, set output format to azw3, click "restore defaults", and in Look & Feel, I enter

Quote:

p { font-size: 12em; }

in the Extra CSS tab.

When I open the converted azw3 in the calibre editor, I see that the last html file in the "Text" files is a table of contents that isn't there at the end of the epub. The Extra CSS I entered above is in the 0003.css file. The 0003.css file is linked only by this final html toc file, so doesn't have any affect on the rest of the book.

Is this normal? Am I doing something wrong here?

Section8 · 02-06-2015, 11:55 PM

Ok - I figured out that if I check "Do not add table of contents" in the Azw3 output tab of the dialog, that final html toc isn't generated.

This looks like it's more complex that what I was assuming. All I need is for whatever gibberish I put in the Extra CSS of the conversion options to end up in the azw3's css.

Specifically, if I set negative margins in the css "html {}" selector, it appears to override all other margins (body, @page, paragraph, etc) and just works in the PW2. I can easily paste this in from the calibre editor.

02-05-2015, 11:48 PM	#1
Section8 Addict Posts: 260 Karma: 2092424 Join Date: Oct 2011 Location: Arlington, TX Device: Kindle PW4, Moon+ Reader on a cheap Android tablet	epub to azw3 conversion and Extra CSS I'm using calibre 2.18. I have recently acquired a kindle PW2 and am in the process of converting my epub library to azw3. I have been experimenting with using the "Look & Feel/Extra CSS" field to add "html { margin-left: -30px; margin-right: -30px; }" to the azw3 css, which can reduce the margins on the kindle. In almost every epub I convert to azw3, the "Extra CSS" appears to be ignored, and does not appear anywhere in any of the css files in the output azw3. No matter what css snippet I put in the "Extra CSS" box, it does not appear anywhere in the output azw3. However, in a very few cases, something stranger heppens: 1 - A third css file - 0003.css - is produced in the output azw3 (most conversions seem to only produce 2 css files). The 0003.css file does contain the "Extra CSS" from the conversion dialog. 2 - An html table of contents page is generated as the last html/text file in the output azw3's spine. This html toc at the end of the spine is not present in the input epub and is the only html file in the azw3 that links to the 0003.css stylesheet with the "Extra CSS". None of the other html/text files in the output azw3 link to the 0003.css sheet. I guess this html toc is related to the "table of contents" settings in the conversion dialog. I've made sure I don't have anything set there and that I press the "Restore defaults" button before setting the "Extra CSS" and starting the conversion. Below is the log from a conversion that produces this extra toc. Does anyone have any idea what's going on here? Spoiler: Convert book 1 of 1 (The Hound of the Baskervilles) DeDRM v6.1.0: In __init__ DeDRM v6.1.0: In load_resources DeDRM v6.1.0: verdir /home/john/.config/calibre/plugins/DeDRM/6.1.0 DeDRM v6.1.0: In initialize Resolved conversion options calibre version: 2.18.0 {'asciiize': False, 'author_sort': None, 'authors': None, 'base_font_size': 0.0, 'book_producer': None, 'change_justification': u'original', 'chapter': u"//*[((name()='h1' or name()='h2') and re:test(., 'chapter\|book\|section\|part\|prologue\|epilogue\\s+', 'i')) or @class = 'chapter']", 'chapter_mark': u'none', 'comments': None, 'cover': u'/tmp/calibre_2.18.0_tmp_JE9bMF/s9pYmt.jpeg', 'debug_pipeline': None, 'dehyphenate': True, 'delete_blank_paragraphs': False, 'disable_font_rescaling': False, 'dont_compress': False, 'duplicate_links_in_toc': False, 'embed_all_fonts': False, 'embed_font_family': None, 'enable_heuristics': False, 'expand_css': True, 'extra_css': u'html { margin-left: -30px; margin-right: -30px; }', 'extract_to': None, 'filter_css': u'', 'fix_indents': True, 'font_size_mapping': None, 'format_scene_breaks': True, 'html_unwrap_factor': 0.35, 'input_encoding': None, 'input_profile': <calibre.customize.profiles.InputProfile object at 0x7f6f1b98b0d0>, 'insert_blank_line': False, 'insert_blank_line_size': 0.5, 'insert_metadata': False, 'isbn': None, 'italicize_common_cases': True, 'keep_ligatures': False, 'language': None, 'level1_toc': None, 'level2_toc': None, 'level3_toc': None, 'line_height': 0.0, 'linearize_tables': False, 'margin_bottom': 0.0, 'margin_left': 0.0, 'margin_right': 0.0, 'margin_top': 0.0, 'markup_chapter_headings': True, 'max_toc_links': 50, 'minimum_line_height': 110.0, 'mobi_toc_at_start': False, 'no_chapters_in_toc': False, 'no_inline_navbars': False, 'no_inline_toc': False, 'output_profile': <calibre.customize.profiles.TabletOutput object at 0x7f6f1b98bc50>, 'page_breaks_before': u'/', 'prefer_author_sort': False, 'prefer_metadata_cover': False, 'pretty_print': False, 'pubdate': None, 'publisher': None, 'rating': None, 'read_metadata_from_opf': u'/tmp/calibre_2.18.0_tmp_JE9bMF/IEYdun.opf', 'remove_fake_margins': False, 'remove_first_image': False, 'remove_paragraph_spacing': False, 'remove_paragraph_spacing_indent_size': 1.5, 'renumber_headings': True, 'replace_scene_breaks': u'', 'search_replace': '[]', 'series': None, 'series_index': None, 'share_not_sync': False, 'smarten_punctuation': False, 'sr1_replace': None, 'sr1_search': None, 'sr2_replace': None, 'sr2_search': None, 'sr3_replace': None, 'sr3_search': None, 'start_reading_at': None, 'subset_embedded_fonts': False, 'tags': None, 'timestamp': None, 'title': None, 'title_sort': None, 'toc_filter': None, 'toc_threshold': 6, 'toc_title': None, 'unsmarten_punctuation': False, 'unwrap_lines': True, 'use_auto_toc': False, 'verbose': 2} InputFormatPlugin: EPUB Input running on /tmp/calibre_2.18.0_tmp_JE9bMF/uAw2e7.epub Parsing all content... Parsing OEBPS/Text/HoB-10.xhtml ... Parsing OEBPS/Text/HoB-11.xhtml ... Parsing OEBPS/Text/HoB-12.xhtml ... Parsing OEBPS/Text/HoB-13.xhtml ... Parsing OEBPS/Text/HoB-3.xhtml ... Parsing OEBPS/Text/HoB-14.xhtml ... Parsing OEBPS/Text/HoB-1.xhtml ... Parsing OEBPS/Text/HoB.xhtml ... Parsing OEBPS/Text/CoverImage.xhtml ... Parsing OEBPS/Text/HoB-20.xhtml ... Parsing OEBPS/Text/HoB-2.xhtml ... Parsing OEBPS/Text/HoB-4.xhtml ... Parsing OEBPS/Text/HoB-5.xhtml ... Parsing OEBPS/Text/HoB-6.xhtml ... Parsing OEBPS/Text/HoB-7.xhtml ... Parsing OEBPS/Styles/HoB_idstyles.css ... Parsing OEBPS/Text/HoB-8.xhtml ... Parsing OEBPS/Text/HoB-9.xhtml ... Parsing OEBPS/Text/HoB-21.xhtml ... Parsing OEBPS/Text/HoB-15.xhtml ... Parsing OEBPS/Text/HoB-16.xhtml ... Parsing OEBPS/Text/HoB-18.xhtml ... Parsing OEBPS/Text/HoB-19.xhtml ... Parsing OEBPS/Text/HoB-22.xhtml ... Parsing OEBPS/Text/HoB-17.xhtml ... Reading TOC from NCX... Merging user specified metadata... Detecting structure... Flattening CSS and remapping font sizes... Source base font size is 12.00000pt Cleaning up manifest... Trimming unused files from manifest... Creating AZW3 Output... Serializing resources... Splitting markup on page breaks and flow limits, if any... Creating KF8 output Generating in-line ToC Generating KF8 markup... Compressing markup... Creating indices... AZW3 output written to /tmp/calibre_2.18.0_tmp_JE9bMF/Iz1Mof.azw3

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02-06-2015, 08:36 PM	#3
Section8 Addict Posts: 260 Karma: 2092424 Join Date: Oct 2011 Location: Arlington, TX Device: Kindle PW4, Moon+ Reader on a cheap Android tablet	I've tried other css there - no matter what, it doesn't seem to make into the css of the converted azw3. I can get around it using the calibre editor afterwards to put it in the css manually, but it would be more convenient to get the css updated as part of the conversion.

02-06-2015, 10:58 PM	#5
Section8 Addict Posts: 260 Karma: 2092424 Join Date: Oct 2011 Location: Arlington, TX Device: Kindle PW4, Moon+ Reader on a cheap Android tablet	The specific css and margins are not my issue here. That css was just an illustration. My issue is that regardless of the css snippet I put in the "Extra CSS" tab of the conversion dialog, it either does not appear at all in the css of the converted azw3, or it is in a css file that is linked by only one html file (the last) and has no effect on the rest of the book.

02-06-2015, 11:05 PM	#6
kovidgoyal creator of calibre Posts: 45,198 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Extra css is not going to work for body/html margins. Those are controlled by the page layout section of the conversion dialog. As for allowing negative margins there, it's not going to happen, negative values are already used to signify that conversion should not set any values at all. Negative margins are not a sufficiently widespread use case to merit changing that. You'll have to stick to modifying them by hand, post conversion.

02-06-2015, 11:55 PM	#9
Section8 Addict Posts: 260 Karma: 2092424 Join Date: Oct 2011 Location: Arlington, TX Device: Kindle PW4, Moon+ Reader on a cheap Android tablet	Ok - I figured out that if I check "Do not add table of contents" in the Azw3 output tab of the dialog, that final html toc isn't generated. This looks like it's more complex that what I was assuming. All I need is for whatever gibberish I put in the Extra CSS of the conversion options to end up in the azw3's css. Specifically, if I set negative margins in the css "html {}" selector, it appears to override all other margins (body, @page, paragraph, etc) and just works in the PW2. I can easily paste this in from the calibre editor.

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