CKContent is used in nested components. This element tag in the template is replaced with a part of the template of its grandparent component. CKContent has no attributes.
<cgikit name=OtherComponent>Content of parent</cgikit>
OtherComponent : MainPage {}
<b><cgikit name=Content></cgikit></b>
Content : CKContent {}
<b>Content of parent</b>