javascript - change div parent and arrange after drag and drop -


please can me these div s. need move them column using drag , drop. dragged , dropped need arrange them correctly in selected columns.

<head> <style type="text/css">     .header {         background-color: #c0c0c0;         height:70px;         width:1308px;         border: solid;         border-width: 1px;         ;     }     .columns {         background: #c1c1c1;         height:400px;         width: 1308px;         border: solid;         border-width: 1px     }     .col {         background: #c1c1c1;         float:left;         height:400px;         width: 325px;         border: solid;         border-width: 1px;         position: relative;     }     .box {         background: #f0f0f0;         cursor: move;         margin-left: auto;         margin-right:auto;         margin-top:10px;         height:100px;         width: 200px;         border: solid;         border-width: 1px;     }     #box1 {         background: #f0f0f0;         cursor: move;         margin-left: auto;         margin-right:auto;         margin-top:10px;         height:100px;         width: 200px;         border: solid;         border-width: 1px;         margin-top: 3px;         margin-left: 5px;     }     #box1.moveable {         background:#333;         border: solid;         border-width: 1px;         margin-left: auto;         margin-right:auto;         margin-top:10px;     }     #box2 {         background: #f0f0f0;         cursor: move;         margin-left: auto;         margin-right:auto;         margin-top:10px;         height:100px;         width: 200px;         border: solid;         border-width: 1px;         margin-top: 3px;         margin-left: 5px;     }     #box2.moveable {         background:#333;         border: solid;         border-width: 1px;         margin-left: auto;         margin-right:auto;         margin-top:10px;     }     #box3 {         background: #f0f0f0;         cursor: move;         margin-left: auto;         margin-right:auto;         margin-top:10px;         height:100px;         width: 200px;         border: solid;         border-width: 1px;         margin-top: 3px;         margin-left: 5px;     }     #box3.moveable {         background:#333;         border: solid;         border-width: 1px;         margin-left: auto;         margin-right:auto;         margin-top:10px;     }     #box4 {         background: #f0f0f0;         cursor: move;         margin-left: auto;         margin-right:auto;         margin-top:10px;         height:100px;         width: 200px;         border: solid;         border-width: 1px;         margin-top: 3px;         margin-left: 5px;     }     #box4.moveable {         background:#333;         border: solid;         border-width: 1px;         margin-left: auto;         margin-right:auto;         margin-top:10px;     } </style> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js">  </script> <script>     function startmove() {         $(".movable").on("mousemove", function(event) {             var thisx = event.pagex - $(this).width() / 2,                 thisy = event.pagey - $(this).height() / 2;              $(".movable").offset({                 left: thisx,                 top: thisy             });             $(this.parent()).detach().css({                 top: 0,                 left: 0             }).appendchild();         });     }     $(document).ready(function() {         $("#box1").on("mousedown", function() {             $(this).addclass("movable");             startmove();         }).on("mouseup", function() {             $(this).removeclass("movable");              console.log($(this).attr('id'));             });         $("#box2").on("mousedown", function() {             $(this).addclass("movable");             startmove();         }).on("mouseup", function() {             $(this).removeclass("movable");              console.log($(this).attr('id'));          });         $("#box3").on("mousedown", function() {             $(this).addclass("movable");             startmove();         }).on("mouseup", function() {             $(this).removeclass("movable");              console.log($(this).attr('id'));          });         $("#box4").on("mousedown", function() {             $(this).addclass("movable");             startmove();         }).on("mouseup", function() {             $(this).removeclass("movable");              console.log($(this).attr('id'));          });     });; </script>     </head>  <body> <div class="header">     <p style="text-align: center; font-size: 20px;">header</p> </div> <div class="columns">     <div class="col" id="column1">         <div class="box" id="box1"></div>         <div class="box" id="box2"></div>     </div>     <div class="col" id="column2">         <div class="box" id="box3"></div>     </div>     <div class="col" id="column3"></div>     <div class="col" id="column4">         <div class="box" id="box4"></div>     </div> </div> 


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