1471157.html (311B)
1 <!doctype html> 2 <input type="file"> 3 <script> 4 onload = function() { 5 var input = document.querySelector("input"); 6 console.log(input.offsetWidth); // Force layout flush and hence layout box 7 // creation. 8 input.dispatchEvent(new DragEvent("drop")); 9 } 10 </script>