a-24

<!-- #24 -->
<div class="a-24">
    <!-- Front. Add background color. -->
    <div class="a-24-f a-bg-COLORNAME">
        <!-- Heading -->
        <h3>HEADING</h3>
    </div>
    <!-- Back. Add background color. -->
    <div class="a-24-b a-bg-COLORNAME">
        <!-- Heading -->
        <h4><a href="#">HEADING</a></h4>
        <!-- Para -->
        <p>...........Paragraph..........</p>
    </div>
</div>