1.8

Table Of Contents

Print section background selector

When you inspect a Print section in a browser, you will see that it has a <div id="pages">

element as the first child of the <body> element. Inside this <div> there are one or more

MediaBoxes: elements with the class page_mediabox. Each MediaBox contains the Media,

section background and Master Page that apply to one page (see "Media" on page101,

"Master Pages" on page98 and "Using a PDF file as background image" on page87).

In the MediaBox, a Print section background is an <img> element with the ol_pdf_datamapper_

input class. Its src attribute references the PDF file that contains the image and its page

attribute is used to select a specific page in that PDF (as a PDF can contain more than one

page). For example:

<img src="file:/C:/Users/MyUser/Pictures/mixed.pdf?page=1" class="ol_pdf_datamapper_

input">.

You can use the ol_pdf_datamapper_input class as a selector to target the section background

in a style rule or script.

Placing the section background in front of the Master Page

The stacking order of elements inside each MediaBox, from bottom to top, is:

1. Media

2. Section background

3. Master Page elements

Using the .page_mediabox selector, you could change this stacking order and place the section

background on top of the elements on the Master Page. Set the z-index property to a value

larger than 0 (zero) and add !important to make this style rule override the inline style

declaration that normally puts the section background behind the Master Page elements:

.page_mediabox img.ol_pdf_datamapper_input {

z-index: 10 !important;

}

Scaling the section background

The rule below downscales the section background image and keeps it in the centre of the

page:

.page_mediabox img.ol_pdf_datamapper_input {

transform: translate(-50%, -50%) scale(1.5, 1.5) !important;

}

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