Ближайший JavaScript
var el = document.getElementById('div-03');
var r1 = el.closest("#div-02");
// returns the closest parent element with the id=div-02
Rajbits
var el = document.getElementById('div-03');
var r1 = el.closest("#div-02");
// returns the closest parent element with the id=div-02var closestElement = targetElement.closest(selectors);