031-manual.html (1077B)
1 <!DOCTYPE html> 2 <?xml version="1.0" encoding="utf-8"?> 3 <html xmlns="http://www.w3.org/1999/xhtml"> 4 <head> 5 <title>Drag and drop of overlapping images: negative margin</title> 6 <style type="text/css"> 7 span, strong 8 {color:green; 9 background-color:yellow;} 10 strong 11 {color:red;} 12 img 13 {display:block; 14 width:100px; 15 height:100px;} 16 img + img 17 {margin-top:-100px;} 18 </style> 19 <script type="application/ecmascript"> 20 function start(event,feedback) 21 {event.dataTransfer.effectAllowed = 'copy'; 22 event.dataTransfer.addElement(document.querySelector(feedback));} 23 </script> 24 </head> 25 <body> 26 <div> 27 <img ondragstart="start(event,'strong')" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP4z8DwHwAFAAH/VscvDQAAAABJRU5ErkJggg=="/> 28 <img ondragstart="start(event,'span')" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNgaGD4DwAChAGAJVtEDQAAAABJRU5ErkJggg=="/> 29 </div> 30 <p>Try to drag box above. You should see word <span>PASS</span> not <strong>FAIL</strong> in feedback overlay all the time.</p> 31 </body> 32 </html>