Sidebar menu and main content on modern mobile browsers - javascript

I'm trying to avoid scrolling on the main content in mobile browsers when a sidebar menu is opened ° by adding a class to the main content with a 100% height, a hidden overflow and an absolute position, but the problem is if I scroll down and then open the menu I get automatically moved to the top of the page and don't stay on the position where I was before opening the sidebar. I can't figure out what's going wrong.
I tried some solutions like saving the position and then forcing the window to stay always at that place until the sidebar is closed, but I'm pretty sure there's a cleaner way to do it.
Anyone has a better idea?
Thank you very much.
° (I think the technique is known as "off canvas")

You must have put the sidebar at the top of your page, thats why it scrolls to top. To solve this, just use position:absolute;

Related

How to make div change to fixed position when all content is visible in browser window?

Not sure if the title made sense, but I noticed in the wordpress 3.8.1 admin panel, If you resize your window to where the sidebar has menu items blocked from view, it is normal positioning, which allows the sidebar to scroll.
If all the items are visible, then the sidebar has fixed positioning so that only the content to the right of the sidebar will scroll.
Neat little effect.
I was thinking it requires jQuery to add a class or change css. Maybe if the last item in the sidebar is visible then add the class, else leave it alone.
Not sure how to actually code that though.
Can someone help out, maybe even a basic fiddle?
You can do this with simple CSS.
.div_name {
position:fixed;
}
check W3schools Position fixed property for tags

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I want the footer to STOP and fix itself to the bottom of the window if the dynamic page creates a scrollbar, essentially so the navigation is always in view.
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So that the scrolling left-right now works when content overflows (all the content is within an iframe). However I've noticed that when you scroll either vertically or horizontally within this iframe any content that wasn't initially draw on the page is not shown, it's just white.
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http://cantina.co/2012/03/06/ios-5-native-scrolling-grins-and-gothcas/
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When I take mouse over the Navigation menu links (About Us..), the page moves to left. Is that due to javascript?
link text
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