Description
It calls previously defined block again, so we can reuse blocks in another part of the page.
Schema
Child nodes are not allowed.
Attributes
name - name of the block. it should be the name of a block defined somewhere in the skeleton.
Example
Following example will be rendered as "<div>Header</div><div>Header</div>".
<block name="header"> <div>Header</div></block><call_block name="header"/>