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  1. PO
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    <p>I tried the accepted solution here, but ended up using setTimeout to overcome the issue. I was having a ton of trouble with the page-wide container blocking the drop element if it was floated on top, and still causing the problem if it was the drop element.</p> <pre><code>&lt;body style="border: 1px solid black;"&gt; &lt;div id="d0" style="border: 1px solid black;"&gt;&amp;nbsp;&lt;/div&gt; &lt;div id="d1" style="border: 1px solid black; display: none; background-color: red;"&gt;-&amp;gt; drop here &amp;lt;-&lt;/div&gt; &lt;div id="d2" style="border: 1px solid black;"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style="float: left;"&gt;other element&lt;/div&gt; &lt;div style="float: left;"&gt;&amp;nbsp;-&amp;nbsp;&lt;/div&gt; &lt;div style="float: left;"&gt;another element&lt;/div&gt; &lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt; &lt;/body&gt; &lt;script type="text/javascript"&gt; var resetTimer; var f = function(e) { if (e.type == "dragover") { e.stopPropagation(); e.preventDefault(); if (resetTimer) { clearTimeout(resetTimer); } document.getElementById('d1').style.display = ''; } else { var f = function() { document.getElementById('d1').style.display = 'none'; }; resetTimer = window.setTimeout(f, 25); } }; document.body.addEventListener("dragover", f, true); document.body.addEventListener("dragleave", f, true); document.getElementById('d1').addEventListener("drop", function(e){ f(); alert('dropped'); }, false); &lt;/script&gt; </code></pre> <p>If you were to just call <code>f();</code> instead of <code>window.setTimeout(f, 250);</code>, you'll see some nasty flickering of the element showing and hiding.</p> <p><strong>http://jsfiddle.net/guYWx/</strong></p>
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    1. POHTML5 drag & drop behaviour
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    1. USLangdon
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      1. VTUpMod
    1. COThe flickering is because it fires a dragleave on BODY as it enters the dropzone, which makes the dropzone disappear, triggering the dragover again. I think I got around this (my project was eight or nine months ago now, so I can't remember all the details) by applying the dragover listener to all visible block elements on the page. Yours is probably a much more elegant solution.
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      1. USR Hill
    2. COIf you attach the event listener to document (instead of body), then the dragover is also fired if the file is dragged below the end of the body. This solution does not cover dragging elements on the current page, see also [this question](http://stackoverflow.com/questions/6848043/how-do-i-detect-a-file-is-being-dragged-rather-than-a-draggable-element-on-my-pa/8494918#8494918).
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      1. USbouke
 

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