d be
considered last resort in order to achieve and maintain an efficient and
manageable code base. Put another way, giving detection and hacks a free pass
will hurt projects in the long run as projects tend to take the way of least
resistance. That is, allowing and making it easy to use detection and hacks
means using detection and hacks more frequently—and more frequently is too
frequently.</p>

<h3 id="CSS_Formatting_Rules" class="numbered">CSS Formatting Rules</h3>

<h4 id="Declaration_Order" class="n