- drag to create two columns
// To tow columns
// |------------------------------------------------------------------------------
// | |
// | xxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
// | xxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
// | |
// |------------------------------------------------------------------------------
//
// |------------------------------------------------------------------------------
// | |
// | xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
// | |
// |------------------------------------------------------------------------------
// To three columns
// |------------------------------------------------------------------------------
// | |
// | xxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
// | xxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
// | xxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
// | |
// |------------------------------------------------------------------------------
//
// |------------------------------------------------------------------------------
// | |
// | xxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx |
// | xxxxx xxxxxx xxxx |
// |------------------------------------------------------------------------------
Drag Event vs Mouse events for Drag and Drop Drag & Drop vs. MouseEvents - A misunderstanding How to simulate HTML5 Drag and Drop events in javascript? Drag'n'Drop with mouse events