<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/09/06/setting-the-vertical-gap-between-an-icon-and-label-on-a-linkbutton-control-in-flex/ -->
<mx:Application name="LinkButton_verticalGap_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white" viewSourceURL="srcview/index.html">

    <mx:ApplicationControlBar dock="true">
        <mx:Form styleName="plain">
            <mx:FormItem label="verticalGap:">
                <mx:HSlider id="slider"
                        minimum="0"
                        maximum="10"
                        value="2"
                        snapInterval="1"
                        tickInterval="1"
                        liveDragging="true" />
            </mx:FormItem>
            <mx:FormItem label="labelPlacement:">
                <mx:ComboBox id="comboBox"
                        dataProvider="[top,bottom]" />
            </mx:FormItem>
        </mx:Form>
    </mx:ApplicationControlBar>

    <mx:LinkButton id="linkButton"
            label="LinkButton"
            icon="@Embed('assets/LinkButton.png')"
            verticalGap="{slider.value}"
            labelPlacement="{comboBox.selectedItem}" />

</mx:Application>