Traditional Swing BorderLayout like layout as a Polymer 2 WebComponent.
Use slot names NORTH, WEST, CENTER, EAST, and SOUTH to place contetn into layout.
<border-layout>
<label slot="NORTH">HEADER</label>
<label slot="WEST">LEFT</label>
<label slot="CENTER">MAIN</label>
<label slot="EAST">RIGHT</label>
<label slot="SOUTH">FOOTER</label>
</border-layout>
MIT license