<div class="addr" itemprop="address" itemscope itemtype="http://schema.org/PostalAddress">
    <div itemprop="streetAddress" class="addr-a">
        Boston City Hall, Room #241
        <br /> 2nd floor
        <br /> 1 City Hall Square
    </div>
    <div class="addr-l">
        <span itemprop="addressLocality">Boston</span>, <span itemprop="addressRegion">MA</span> <span itemprop="postalCode">02201</span>
    </div>
</div>

The address component includes classes, but is left unstyled. It will typically be included into other components and should inherit styles from those components.