The basic card is intended as a container for grouping like content.
Examples
Simple card
<cdr-card>
<cdr-img alt="" modifier="responsive" src="http://placehold.it/350x150"></cdr-img>
</cdr-card>
Simple card with an inset to provide internal spacing
<cdr-card
wrapper-a="cdr-inset"
>
<cdr-img alt="" modifier="responsive" src="http://placehold.it/350x150"></cdr-img>
</cdr-card>
placing content in multiple slots
<cdr-card
wrapper-b="cdr-inset"
header
headerClass="cdr-inset"
footer
footerClass="cdr-inset"
>
<cdr-media-object
level="3"
media-url="http://rei.com"
media-title="Article attribution"
img-src="http://placehold.it/50x50"
media-extend-style="cdr-card__media"
media-img-shape="circle"
modifier="center"
slot="header">
</cdr-media-object>
<section slot="bodyB">
<cdr-row cols="3" gutter="none">
<cdr-col>
<cdr-img alt="" modifier="responsive" src="http://placehold.it/350x150"></cdr-img>
</cdr-col>
<cdr-col>
<cdr-img alt="" modifier="responsive" src="http://placehold.it/350x150"></cdr-img>
</cdr-col>
<cdr-col>
<cdr-img alt="" modifier="responsive" src="http://placehold.it/350x150"></cdr-img>
</cdr-col>
<cdr-col>
<cdr-img alt="" modifier="responsive" src="http://placehold.it/350x150"></cdr-img>
</cdr-col>
<cdr-col>
<cdr-img alt="" modifier="responsive" src="http://placehold.it/350x150"></cdr-img>
</cdr-col>
<cdr-col>
<cdr-img alt="" modifier="responsive" src="http://placehold.it/350x150"></cdr-img>
</cdr-col>
</cdr-row>
</section>
<section slot="bodyC">
<cdr-row cols="3" gutter="none">
<cdr-col>
<cdr-img alt="" modifier="responsive" src="http://placehold.it/350x150"></cdr-img>
</cdr-col>
<cdr-col>
<cdr-img alt="" modifier="responsive" src="http://placehold.it/350x150"></cdr-img>
</cdr-col>
<cdr-col>
<cdr-img alt="" modifier="responsive" src="http://placehold.it/350x150"></cdr-img>
</cdr-col>
<cdr-col>
<cdr-img alt="" modifier="responsive" src="http://placehold.it/350x150"></cdr-img>
</cdr-col>
<cdr-col>
<cdr-img alt="" modifier="responsive" src="http://placehold.it/350x150"></cdr-img>
</cdr-col>
<cdr-col>
<cdr-img alt="" modifier="responsive" src="http://placehold.it/350x150"></cdr-img>
</cdr-col>
</cdr-row>
</section>
<cdr-media-object
level="3"
media-url="http://rei.com"
media-title="Backpacking Tents: How to Choose"
img-src="http://placehold.it/350x150"
media-extend-style="cdr-card__media"
media-img-shape="responsive"
modifier="top block">
</cdr-media-object>
<cdr-button-group slot="footer">
<cdr-button >B1</cdr-button>
<cdr-button class="cdr-card__action" modifier="secondary">B2</cdr-button>
</cdr-button-group>
</cdr-card>