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Vertically Center Text for Reflowable ePUB3

Engaged ,
Mar 21, 2017 Mar 21, 2017

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Windows 10, 64 bit, InDesign CC 2017

Does anyone have a recommendation on how to vertically center text for a reflowable ePUB? The first page of the eBook I'm working on has the book title and the byline. It looks like this:

Some Book Title

by

Some book author

I'd like for this to sit in the middle of the page. Can I get InDesign to output the CSS for this or do I have to do this manually?

It's only an island if you look at it from the water.
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Adobe Community Professional ,
Mar 22, 2017 Mar 22, 2017

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Does the Paragraph Style, with centered text indicated, not work?

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Engaged ,
Mar 22, 2017 Mar 22, 2017

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Hi DC,

No, it will only center the text horizontally, but the text will appear at the very top of the page, whereas I want it to occupy the middle.

It's only an island if you look at it from the water.

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Adobe Community Professional ,
Mar 22, 2017 Mar 22, 2017

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Create a Paragraph style just for this and add space above (within the Paragraph style panel)

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Engaged ,
Mar 23, 2017 Mar 23, 2017

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It doesn't work too well for reflowable ePUBs. They don't translate a lot of techniques, used for a print layout, to html & css. I need mine to consistently center itself vertically, based on the viewport (monitor size).

It's only an island if you look at it from the water.

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Adobe Community Professional ,
Mar 23, 2017 Mar 23, 2017

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I've never had problems, I create the document especially for reflowable text ePub - the InDesign document looks nothing like the print version. Which devices have you tested it on?

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Explorer ,
Mar 28, 2017 Mar 28, 2017

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Hello Bro,

Look first of all apply paragraph style to the text and give some enters before your text and apply the same paragraph style to them

in every enter insert non breaking space, Then try to export Capture1.JPGCapture2.JPG  

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Engaged ,
Mar 28, 2017 Mar 28, 2017

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Guys, I found this CSS code which works really well. It will center the line of type vertically, based on the size of the viewport, which is what I needed. In my example above, I created a paragraph style for the first line of type (book title). Then I went into the Export Tagging tab,unchecked Emit CSS and entered a CSS class name. Finally I created a separate CSS file with the same class name that contains all of the font information, including the code below. Upon exporting, I made sure to include this css file.

margin: 50vh 0 0 0;  /* vh stands for viewport height*/

-webkit-transform: translateY(-50%);

transform: translateY(-50%);

I've proofed it on an iPhone 6s+, iPad and MS Surface Book (using Readium) and it works consistently.

It's only an island if you look at it from the water.

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New Here ,
Jul 22, 2017 Jul 22, 2017

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The space + non-breaking space worked. Thank you.

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Explorer ,
Jul 26, 2017 Jul 26, 2017

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you are welcome

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Explorer ,
Mar 29, 2017 Mar 29, 2017

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where should I enter this CSS code?

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Engaged ,
Mar 29, 2017 Mar 29, 2017

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Mahmoud,

First you'll need the CSS for the paragraph style that will be used to vertically center the line of type. This style cannot be used anywhere else in the InD doc. To do this, don't apply the edits that I mentioned in the earlier post just yet (from March 28). Instead, export to reflowable ePUB and then crack open the file. Navigate to the CSS file. The name should be something like idGeneratedStyles.css. Open this up with a text/html editor and look for this paragraph style name. It will be a class name so it will start with a period mark, for example, my style is title-byline so in the CSS it will appear as .title-byline. Copy all of the declarations listed in this class name to a blank text file. Then enclose these in a new class name. I called mine .vertCenter.

example:

.vertCenter{

  font-family:"Myriad Pro", sans-serif;

  font-size:1.167em;

  font-style:normal;

  font-variant:normal;

  font-weight:normal;

  line-height:1.2;

margin: 50vh 0 0 0;  /* vh stands for viewport height*/

-webkit-transform: translateY(-50%);

transform: translateY(-50%);

  color:#222222;

  orphans:1;

  page-break-after:auto;

  page-break-before:auto;

  text-align:center;

  text-decoration:none;

  text-indent:0;

  text-transform:none;

  widows:1;

}

Take out any references to the margin properties and replace that with what I wrote above (in orange). Save this file with a descriptive name. Mine is called xtra.css. Switch back to InDesign and open the same paragraph style and click Export Tagging. Add the class name, .vertCenter to the Class field (under Export Tagging). Uncheck Emit CSS. Now export to Reflowable ePUB. When the Export Options window opens, click the CSS tab and click Add Style Sheet. Navigate to your xtra.css file (or whatever you named it). Click Ok to complete the export. Proof your ePUB to confirm the CSS is working correctly. I've tested it on iBooks, Readium, and Kobo. The idea is to ensure your type is vertically centered, based on the size or your veiwport (a.k.a screen, monitor, etc). Let me know if it works for you.

It's only an island if you look at it from the water.

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Community Beginner ,
Jul 29, 2017 Jul 29, 2017

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soundman1963 Thank you so much! I have converted 100's of files and have never been able to figure this out. This is just one more feather in my hat to ensure that my clients get the highest quality files possible. This is an especially important feature for children's books, IMO.

While the enter+nonbreaking space is a work-around (and work-arounds are needed at times), I am thankful that you provided the code.

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New Here ,
Jan 24, 2021 Jan 24, 2021

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Nice one @Chris Panny, it worked. But how do you then apply such to multiple pages with different paragraph styles. 

My Dedication Page is just two line and I want it in the middle so also my Contents Page.

 

Anticipate your earnest response. 

 

Thank you.

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