Setting up the Node

First we need the form to make draggable.

<div class="yui3-skin-sam">
    <div id="demo">
        <div class="yui3-widget-hd">An example Draggable Panel</div>
        <div class="yui3-widget-bd">
            <form id="example-form" action="?">
                <fieldset>
                    <legend>This Panel can be moved by dragging it's title area. It contains an example form for you to complete.</legend>
                    <div class="formfield">
                        <label for="input-name">Name</label>
                        <input type="text" name="name" id="input-name" placeholder="Name">
                    </div>
                    <div class="formfield">
                        <label for="input-email">Email</label>
                        <input type="email" name="email" id="input-email" placeholder="Email">
                    </div>
                    <div class="formfield">
                        <label for="input-password">Password</label>
                        <input type="password" name="password" id="input-password" placeholder="Password">
                    </div>
                    <div class="controls">
                        <button class='primary'>Submit</button>
                    </div>
                </fieldset>
            </form>
        </div>
        <div class="yui3-widget-ft"></div>
    </div>
</div>

Now we give that Node some CSS to make it visible and style it appropriately.

.yui3-widget-hd {
    cursor: move
}

.yui3-widget-ft {
    display: none;
}

.yui3-skin-sam .yui3-panel-content {
    border: #ccc;
    border-radius: 4px;
}

#example-form,
#example-form input {
    font-family: "proxima-nova", sans-serif;
    color: #777;
}

#example-form fieldset {
    border: 0;
    margin: 0;
    padding: .35em 0 .75em;
}

#example-form legend {
    display: block;
    width: 100%;
    padding: .3em 0;
    color: #333;
    border-bottom: 1px solid #e5e5e5;
    margin: 1em 0;
}

#example-form label {
    display: inline-block;
    width: 10em;
    margin: 0 1em 0 0;
    text-align: right;
    vertical-align: middle;
}

#example-form .controls {
    margin: 1.5em 0 0 10em;
}

#example-form input {
    width: 15em;
    padding: .5em .6em;
    display: inline-block;
    border: 1px solid #ccc;
    box-shadow: inset 0 1px 3px #ddd;
    border-radius: 4px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    margin: .25em 0;
    font-size: 100%;
}

#example-form button {
    display: inline-block;
    zoom: 1;
    line-height: normal;
    white-space: nowrap;
    vertical-align: baseline;
    text-align: center;
    cursor: pointer;
    -webkit-user-drag: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    font-family: inherit;
    font-size: 100%;
    padding: .5em 1em;
    color: #444;
    color: rgba(0,0,0,.8);
    border: 1px solid #999;
    border: 0 rgba(0,0,0,0);
    background-color: #E6E6E6;
    text-decoration: none;
    border-radius: 2px;
}

#example-form button.hover,
#example-form button:hover,
#example-form button:focus {
    filter:
    progid:DXImageTransform.Microsoft.gradient(startColorstr='#00000000',
    endColorstr='#1a000000', GradientType=0);
    background-image: -webkit-gradient(linear,0 0,0
    100%,from(transparent),color-stop(40%,rgba(0,0,0,.05)),to(rgba(0,0,0,.1)));
    background-image: -webkit-linear-gradient(transparent,rgba(0,0,0,.05)
    40%,rgba(0,0,0,.1));
    background-image: -moz-linear-gradient(top,rgba(0,0,0,.05)
    0,rgba(0,0,0,.1));
    background-image: -o-linear-gradient(transparent,rgba(0,0,0,.05)
    40%,rgba(0,0,0,.1));
    background-image: linear-gradient(transparent,rgba(0,0,0,.05)
    40%,rgba(0,0,0,.1));
}

#example-form button.primary {
    background-color: #0078e7;
    color: #fff;
}

Setting up the YUI Instance

Now we need to create our YUI instance and tell it to load the panel and dd-plugin modules.

YUI().use('panel', 'dd-plugin');

Creating the Panel and making it draggable

Now that we have a YUI instance with the panel module, we can set up the Panel to contain the form.

YUI().use('panel', 'dd-plugin', function(Y) {
    var panel = new Y.Panel({
        srcNode: '#demo',
        render: true,
        centered: true,
        width: '400px'
    });
});

Making the Panel draggable

And then Plug the header with the Drag plugin

// Make the panel draggable.
panel.plug(Y.Plugin.Drag, {
    handles: [
        '.yui3-widget-hd'
    ]
});