Sticky close button for foundation 6 reveal - zurb-foundation

Question

Problem: when Reveal data is taller than window height, scrolling moves the close icon off the page. I want to make it sticky so that you always have the option of closing the page without scrolling back up to the top.
I have tried loading the foundation 6 .sticky example into the reveal, but none of my attempts have been successful.
This is what I think should work, which is loaded into the reveal container <div id="modal2" style="height: 100%"></div> via ajax. Unfortunately, the close button just scrolls with the content.
<script>
// this script cannot be located in the layouts.js,
// because the trigger doesn't exist at page load.
$('#close-modal2').click(function(){
// $('#modal2').foundation('close'); didn't work for some reason.
// 'open' closes all other modals, so it accomplishes what I need.
$('#modal').foundation('open');
});
</script>
<div>
<button id="close-modal2" class="close-button sticky"
aria-label="Close reveal" type="button" data-sticky>
<span aria-hidden="true">×</span>
</button>
</div>
<div id="paragraph-wrapper" data-sticky-container>
<div class="row">
<div class="small-11 small-centered columns">
<div> Lots of content here, enough to overflow window...</div>
<div> Losts of content here..... etc.</div>
</div>
</div>
</div>
Am I missing something? Has anyone else been able to get a sticky close button in a reveal?

Answer 1

The basic behaviour of the Reveal is to close if the user clicks outside of the reveal container, so a user does already have a quick way of exiting the reveal.
However, you could also use position: fixed; on the close element.
That would keep it in the same spot while the modal scrolled up and down.
CSS
#modal2 > .close-button {
position: fixed;
top: 1rem; //or whatever
right: 2rem; //or whatever
}
e.g. in a Fiddle
Using position: fixed; is a bit of a pain for styling and mobiles but that will be depending on your particular design.