     [Inspectable(category="General")]
 
     /**
+     *  <p>For components, this layout constraint property is a
+     *  facade on top of the similarly-named style. To set
+     *  the property to its default value of <code>undefined</code>,
+     *  use the &#64;Clear() directive in MXML or the <code>undefined</code>
+     *  value in ActionScript code. For example, in MXML code,
+     *  <code>horizontalCenter.s2="&#64;Clear()"</code> unsets the 
+     *  <code>horizontalCenter</code>
+     *  constraint in state s2. Or in ActionScript code, 
+     *  <code>button.horizontalCenter = undefined</code> unsets the 
+     *  <code>horizontalCenter</code> constraint on <code>button</code>.</p>
+     *  
      *  @inheritDoc
      *  
      *  @langversion 3.0

    [Inspectable(category="General")]

    /**
     *  @inheritDoc
     *  
     *  @langversion 3.0

    [Inspectable(category="General")]

    /**
     *  <p>For components, this layout constraint property is a
     *  facade on top of the similarly-named style. To set
     *  a state-specific value of the property in MXML to its default 
     *  value of <code>undefined</code>,
     *  use the &#64;Clear() directive. For example, in MXML code,
     *  <code>left.s2="&#64;Clear()"</code> unsets the <code>left</code>
     *  constraint in state s2. Or in ActionScript code, 
     *  <code>button.left = undefined</code> unsets the <code>left</code>
     *  constraint on <code>button</code>.</p>
     * 
     *  @inheritDoc
     *  
     *  @langversion 3.0
