sticky is a property of a block component that will stick their position to the top of your page.
This component are generally in aside bar such as the sidebar or sidekickbar.
Sticky blocks are perceived much better by visitors than unfixed widgets and therefore they have a significantly higher click-through rate.
Adding the sticky attribute will made them sticky.
<tag sticky="true"></tag>
If you have a fixed top navbar, this is the height of your navbar, otherwise this is the top of the window.
<row align="center" width="600px" text-align="center">
<cell>
<note>π</note>
<note>π</note>
<note>π</note>
</cell>
<cell>
<note>π</note>
<note>π</note>
<note>π</note>
</cell>
<cell>
<note>π</note>
<note>π</note>
<note>π</note>
</cell>
</row>
π
π
π
π
π
π
π
π
π