JSFiddle - React, Tailwind, and code Playground
JavaScript
var grid = $('.grid');
grid.each(function(){
console.log("New grid");
var callouts = $(this).find('.callout');
for ( var i = 0; i < callouts.length; i = i + 3){
var max = 0;
for ( var j = i; j < i + 3; j++ ){
if ( $(callouts[j]).height() > max){
max = $(callouts[j]).height();
}
}
for ( var j = i; j < i + 3; j++ ){
console.log(callouts[j])
$(callouts[j]).height(max);
}
}
})