Function layout_2020::query::is_eligible_parent

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fn is_eligible_parent(fragment: &BoxFragment) -> bool
Expand description

Returns whether or not the element with the given style and body element determination is eligible to be a parent element for offset* queries.

From https://www.w3.org/TR/cssom-view-1/#dom-htmlelement-offsetparent:

Return the nearest ancestor element of the element for which at least one of the following is true and terminate this algorithm if such an ancestor is found:

  1. The computed value of the position property is not static.
  2. It is the HTML body element.
  3. The computed value of the position property of the element is static and the ancestor is one of the following HTML elements: td, th, or table.