ahmadharminto

(function (d) {
    let w = d.documentElement.offsetWidth,
        t = d.createTreeWalker(d.body, NodeFilter.SHOW_ELEMENT),
        b;
    while (t.nextNode()) {
        b = t.currentNode.getBoundingClientRect();
        if (b.right > w || b.left < 0) {
            t.currentNode.style.setProperty('outline', '1px dotted red', 'important');
        }
    }