Techniques described herein are directed to determining that
multimedia content displays a representation of an item offered for sale (1) at a first
timestamp and (2) at a first location relative to a viewable window of a
user device; generating an interactive element comprising an e-commerce tag interactable for purchase of the item; rendering, at the first
timestamp, the interactive element on a first portion of the
multimedia content and positioned relative to the representation of the item in a predetermined
spatial configuration in the viewable window; rendering, at a second
timestamp, the interactive element on a second portion of the
multimedia content and positioned relative to the representation in the same
spatial configuration; detecting an interaction with the interactive element; and based on detecting the interaction, displaying a
graphical user interface configured to allow the user to purchase the item.