title: What is the <l:content> tag meaning?
body: <p>What is the meaning of the <code>&lt;l:content&gt;</code> tag in SAPUI5? I know it is about content, but the references to this tag in the <a href="https://sapui5.hana.ondemand.com/sdk/explored.html#/sample/sap.ui.layout.sample.GridInfo/code" rel="nofollow">documentation</a> are not making sense to me. Can someone give me use cases for this tag? It is used only on the <code>&lt;l:Grid&gt;</code> control?</p>
  
  <p>Thanks in advance!</p>