Tilt In

<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/bundles/anime.umd.min.js"></script>
<script>
  (function () {
    // Tilt In: the element tips upright from a slanted 3D angle, gliding in
    // from a corner as it straightens up to face you.
    // Usage: <div data-tilt-in>…</div>
    // Optional: data-from (the corner it comes from: "top-left",
    // "top-right", default, "bottom-left" or "bottom-right"; give several and
    // each loop uses the next), data-angle (how far it's tipped at the start,
    // in degrees, default 35), data-distance (px it glides, default 60),
    // data-perspective (px, default 700), data-duration (ms, default 900),
    // data-delay (ms before the first entrance), data-loop (hold, fade away
    // and tilt in again), data-hold (ms to stay when looping, default 1400).
    var DEFAULTS = { from: 'top-right', angle: 35, distance: 60, perspective: 700, duration: 900, delay: 0, hold: 1400 };

    function reduced() {
      return window.matchMedia('(prefers-reduced-motion: reduce)').matches;
    }

    function enter(el, from, done) {
      var d = el.dataset;
      var t = +d.duration || DEFAULTS.duration;
      var a = d.angle === undefined ? DEFAULTS.angle : +d.angle || 0;
      var dist = d.distance === undefined ? DEFAULTS.distance : +d.distance || 0;
      var sx = /left/.test(from) ? -1 : 1;
      var sy = /bottom/.test(from) ? 1 : -1;
      // Lean the near corner towards you and the far side away.
      anime.utils.set(el, {
        perspective: (+d.perspective || DEFAULTS.perspective) + 'px',
        x: sx * dist,
        y: sy * dist,
        rotateX: sy * -a,
        rotateY: sx * a,
        rotate: sx * a * 0.25,
        opacity: 0
      });
      anime.animate(el, {
        x: 0,
        y: 0,
        rotateX: 0,
        rotateY: 0,
        rotate: 0,
        opacity: { to: 1, duration: t * 0.5, ease: 'out(2)' },
        duration: t,
        ease: 'out(3)',
        onComplete: done
      });
    }

    function cycle(el) {
      var d = el.dataset;
      var s = el._tli;
      var corners = (d.from || DEFAULTS.from).split(/[\s,]+/);
      enter(el, corners[s.n++ % corners.length], function () {
        if (d.loop === undefined || d.loop === 'false') return;
        setTimeout(function () {
          anime.animate(el, {
            opacity: 0,
            duration: 400,
            ease: 'out(2)',
            onComplete: function () {
              // Wait until it's back on screen before the next entrance.
              setTimeout(function () {
                if (s.visible) cycle(el);
                else s.waiting = true;
              }, 500);
            }
          });
        }, +d.hold || DEFAULTS.hold);
      });
    }

    function init() {
      var io = new IntersectionObserver(function (entries) {
        entries.forEach(function (e) {
          var s = e.target._tli;
          s.visible = e.isIntersecting;
          if (!e.isIntersecting) return;
          if (!s.started) {
            s.started = true;
            setTimeout(function () { cycle(e.target); }, +e.target.dataset.delay || DEFAULTS.delay);
          } else if (s.waiting) {
            s.waiting = false;
            cycle(e.target);
          }
        });
      }, { threshold: 0.2 });
      document.querySelectorAll('[data-tilt-in]').forEach(function (el) {
        if (el._tli) return;
        el._tli = { n: 0 };
        if (reduced()) return;
        anime.utils.set(el, { opacity: 0 });
        io.observe(el);
      });
    }

    if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', init);
    else init();
  })();
</script>

<div class="card" data-tilt-in>Boarding pass ready</div>

<!-- or from the bottom left, tipping in place: -->
<div class="card" data-tilt-in data-from="bottom-left" data-distance="0">Boarding pass ready</div>