jQuery UI Sortable Placeholder
Try to drag items to reanrannge them, while you`re dragging items, the placeholder will show up on an available place.
Source Code
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ExampleJquery ui sortable placeholder
<link rel="stylesheet" href="http://code.jquery.com/ui/1.9.2/themes/base/jquery-ui.css" /> <script type="text/javascript" src="http://code.jquery.com/jquery.min.js"></script> <script type="text/javascript" src="http://code.jquery.com/ui/1.9.2/jquery-ui.js"></script> <script type="text/javascript" src="http://www.pureexample.com/js/lib/jquery.ui.touch-punch.min.js"></script> <!-- CSS --> <style type="text/css"> .list { background-color: #478BFF; font-size: 30px; text-align: center; cursor: pointer; font-family: Geneva,Arial,Helvetica,sans-serif; border: 1px solid gray; } #items .ui-selected { background: red; color: white; font-weight: bold; } #items { list-style-type: none; margin: 0; padding: 0; } #items li { float: left; margin: 2px; padding: 2px; width: 48px; height: 48px; line-height: 48px; } .highlight { border: 1px solid red; font-weight: bold; font-size: 45px; background-color: lightblue; } </style> <!-- Javascript --> <script> $(function () { $("#items").sortable({ placeholder: "highlight", start: function (event, ui) { ui.item.toggleClass("highlight"); }, stop: function (event, ui) { ui.item.toggleClass("highlight"); } }); $("#items").disableSelection(); }); </script> <!-- HTML --> <div style="width:520px"> <ul id="items"> <li class="list">1</li> <li class="list">2</li> <li class="list">3</li> <li class="list">4</li> <li class="list">5</li> <li class="list">6</li> <li class="list">7</li> <li class="list">8</li> <li class="list">9</li> <li class="list">10</li> <li class="list">11</li> <li class="list">12</li> <li class="list">13</li> <li class="list">14</li> <li class="list">15</li> <li class="list">16</li> <li class="list">17</li> <li class="list">18</li> <li class="list">19</li> <li class="list">20</li> <li class="list">21</li> <li class="list">22</li> <li class="list">23</li> <li class="list">24</li> <li class="list">25</li> <li class="list">26</li> <li class="list">27</li> <li class="list">28</li> </ul> </div> <div id="info" style="font-family:Geneva,Arial,Helvetica,sans-serif;font-size:20px;"></div>