Work with slot reservations BigQuery

cms:pageSlot - It is governed by the tag file webwebrootWEB-INFcommontld which is in the acceleratorcms extension If you go to the description

Instead of using Stereotype and Tag, some projects may use Instance Specification and Slot to define new attributes of an element

slot number meaning How to Get Text Content under Slot tag With each Salesforce release, more and more pages are converted to Lightning Web Component ,

slot length Angular Elements v7 example with tag from Web Components ☞ en-USdocsWebWeb_Components ☞ Jw5MbK