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calculate CSS margin-top Property

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Feb 03.2012

i need some help with this script.
for the id ‘section1’
i want to calculate the css margin-top property.
the margin-top equals the available screen height minus 920px.

hope someone can give a hint.

<script type=”text/javascript”>
$(window).load(function(){
$(window).resize(function(){
AvailHeight = window.screen.availHeight
var topmarge1 = AvailHeight – 920
$(‘#section1’).css(‘margin-top’, topmarge1+”px”); // <– set here
});
$(window).resize();
});
</script>

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JavaScript

4 Comments(s) ↴

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@007JulienFeb 04.2012 — See this page about a cross browser getStyle function which can probably give the margin-top without jQuery.
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@mrhooFeb 04.2012 — For someone using a mobile device, or a screen with less than 920 px height, the margin will be negative, and the top part of section1 will be be outside the visible window.
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@gaudiauthorFeb 05.2012 — i first do a browserdetection and redirectin using javascripting.

it is not a usual website .. it's a website with a jQuery horizontal scrolling script. http://www.primastyle.com/bertbril

#section1 is the homepage

#section2 is the page 'aanbod'

#section3 is the contact page

etc etc

so i have to work with a position which is absolute.

i don't think i can do it with getStyle.

but how is my syntax ?

because working with avalHeight is what i think the only possibility to verticalcenter my pages.
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@007JulienFeb 05.2012 — You want apparently to set (not to calculate) the css property and to show your original pages. Then AvailHeight seem a good cross browser property, like shown on this page.
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