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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><title>jQuery UI Draggable - Constrain movement</title><link rel="stylesheet" href="../../themes/base/jquery.ui.all.css"><script src="../../jquery-1.4.2.js"></script><script src="../../ui/jquery.ui.core.js"></script><script src="../../ui/jquery.ui.widget.js"></script><script src="../../ui/jquery.ui.mouse.js"></script><script src="../../ui/jquery.ui.draggable.js"></script><link rel="stylesheet" href="../demos.css"><style>.draggable { width: 90px; height: 90px; padding: 0.5em; float: left; margin: 0 10px 10px 0; }#draggable, #draggable2 { margin-bottom:20px; }#draggable { cursor: n-resize; }#draggable2 { cursor: e-resize; }#containment-wrapper { width: 95%; height:150px; border:2px solid #ccc; padding: 10px; }</style><script>$(function() {$( "#draggable" ).draggable({ axis: "y" });$( "#draggable2" ).draggable({ axis: "x" });$( "#draggable3" ).draggable({ containment: "#containment-wrapper", scroll: false });$( "#draggable4" ).draggable({ containment: "#demo-frame" });$( "#draggable5" ).draggable({ containment: "parent" });});</script></head><body><div class="demo"><h3 class="docs">Constrain movement along an axis:</h3><div id="draggable" class="draggable ui-widget-content"><p>I can be dragged only vertically</p></div><div id="draggable2" class="draggable ui-widget-content"><p>I can be dragged only horizontally</p></div><h3 class="docs">Or to within another DOM element:</h3><div id="containment-wrapper"><div id="draggable3" class="draggable ui-widget-content"><p>I'm contained within the box</p></div><div id="draggable4" class="draggable ui-widget-content"><p>I'm contained within the box's parent</p></div><div class="draggable ui-widget-content"><p id="draggable5" class="ui-widget-header">I'm contained within my parent</p></div></div></div><!-- End demo --><div class="demo-description"><p>Constrain the movement of each draggable by defining the boundaries of the draggable area. Set the <code>axis</code> option to limit the draggable's path to the x- or y-axis, or use the <code>containment</code> option to specify a parent DOM element or a jQuery selector, like 'document.'</p></div><!-- End demo-description --></body></html>