`.show()` inconsistent behaviour (bug?)
<p>I have a hidden element <code>$myHiddenElement</code>. Now if I do</p>

<p><code>$myHiddenElement.show();</code></p>

<p>all is OK. However, if I do</p>

<p><code>$myHiddenElement.show(300);</code></p>

<p>then <code>$myHiddenElement</code> gets the attribute <code>display: block;</code> which damages my layout.</p>
