easeReverse - UI interactions

console.clear();

const erToggle = document.querySelector('#erToggle');
const exitSlider = document.querySelector('#exitSlider');
const exitVal = document.querySelector('#exitVal');
let exitTs = 2.5;

exitSlider.addEventListener('input', () => {
 exitTs = parseFloat(exitSlider.value);
 exitVal.textContent = exitTs + '×';
});

function er(val) {
 return erToggle.checked ? (val || true) : false;
}

// ══════════════════════════════════════
// Button — big elastic scale
// ══════════════════════════════════════
let btnTl;
function initBtn() {
 if (btnTl) { btnTl.kill(); }
 gsap.set('#hoverBtn', { clearProps: 'all' });

 btnTl = gsap.timeline({ paused: true })
 .to('#hoverBtn', {
 scale: 1.35, duration: 1.2,
 ease: 'elastic.out(1.2, 0.3)',
 easeReverse: er('power2.out')
 }, 0);
}
initBtn();

document.querySelector('#hoverBtn').addEventListener('mouseenter', () => {
 btnTl.timeScale(1).play();
});
document.querySelector('#hoverBtn').addEventListener('mouseleave', () => {
 btnTl.timeScale(erToggle.checked ? exitTs : 1).reverse();
});

// ══════════════════════════════════════
// Dropdown — elastic panel, elastic arrow, stagger
// ══════════════════════════════════════
let ddOpen = false;
let ddTl;
const ddMenu = document.querySelector('#dropdownMenu');
const ddTrigger = document.querySelector('#dropdownTrigger');
const ddArrow = document.querySelector('.dd-arrow');

function initDD() {
 if (ddTl) { ddTl.kill(); }
 gsap.set(ddMenu, { autoAlpha: 0, yPercent: -30, scale: 0.7 });
 gsap.set(ddArrow, { rotation: 0 });
 gsap.set('.dropdown-item', { opacity: 1, x: 0 });
 ddMenu.classList.remove('open');
 ddOpen = false;

 ddTl = gsap.timeline({ paused: true })
 .to(ddArrow, {
 rotation: 180, duration: 0.9,
 ease: 'elastic.out(1.2, 0.3)',
 easeReverse: er('power2.inOut')
 }, 0)
 .to(ddMenu, {
 autoAlpha: 1, yPercent: 0, scale: 1, duration: 1,
 ease: 'elastic.out(1.2, 0.3)',
 easeReverse: er('power3.out')
 }, 0)
 .from('.dropdown-item', {
 opacity: 0, x: -20, duration: 0.5,
 ease: 'back.out(3)',
 easeReverse: er('power2.out'),
 stagger: 0.07
 }, 0.1);
}
initDD();

ddTrigger.addEventListener('click', (e) => {
 e.stopPropagation();
 ddOpen = !ddOpen;
 if (ddOpen) {
 ddMenu.classList.add('open');
 ddTl.timeScale(1).play();
 } else {
 ddTl.eventCallback('onReverseComplete', () => ddMenu.classList.remove('open'));
 ddTl.timeScale(erToggle.checked ? exitTs : 1).reverse();
 }
});
document.addEventListener('click', () => {
 if (ddOpen) {
 ddOpen = false;
 ddTl.eventCallback('onReverseComplete', () => ddMenu.classList.remove('open'));
 ddTl.timeScale(erToggle.checked ? exitTs : 1).reverse();
 }
});

// ══════════════════════════════════════
// Tooltip — elastic pop, circle pulse
// ══════════════════════════════════════
let tipTl;
const tipBubble = document.querySelector('#tooltipBubble');
const tipWrap = document.querySelector('#tooltipWrap');
const tipTarget = document.querySelector('.tooltip-target');

function initTip() {
 if (tipTl) { tipTl.kill(); }
 gsap.set(tipBubble, { autoAlpha: 0, y: 14, scale: 0.4 });
 gsap.set(tipTarget, { scale: 1 });

 tipTl = gsap.timeline({ paused: true })
 .to(tipBubble, {
 autoAlpha: 1, y: 0, scale: 1, duration: 1,
 ease: 'elastic.out(1.2, 0.3)',
 easeReverse: er('power3.in')
 }, 0)
 .to(tipTarget, {
 scale: 1.3, duration: 0.8,
 ease: 'elastic.out(1.2, 0.3)',
 easeReverse: er('power3.in')
 }, 0);
}
initTip();

tipWrap.addEventListener('mouseenter', () => {
 tipTl.timeScale(1).play();
});
tipWrap.addEventListener('mouseleave', () => {
 tipTl.timeScale(erToggle.checked ? exitTs : 1).reverse();
});

// ══════════════════════════════════════
// Reinit on toggle
// ══════════════════════════════════════
erToggle.addEventListener('change', () => {
 initBtn();
 initDD();
 initTip();
});

/* StyleGallery host styles: independent replacement for unavailable shared Pen CSS. */
:root{--color-just-black:#111522;--color-surface-white:#f7f3ec;--color-surface75:#cfccc6;--color-surface50:#898e9f;--color-surface25:#414859;--color-shockingly-green:#95efd2;--color-lt-green:#b5f4da;--color-pink:#fbadce;--color-purple:#897dff;--color-lilac:#b5a1ff;--color-orangey:#ffd28c;--color-blue:#75d8ed;--color-ui-gradient:linear-gradient(135deg,#fbadce,#897dff);--light:#f7f3ec;--dark:#111522;--mid:#898e9f}
*{box-sizing:border-box}body{background:#111522;color:#f7f3ec;font-family:system-ui,sans-serif;margin:0;min-height:100vh;width:100%}button,input{font:inherit}button,.button{background:#111522;border:1px solid #898e9f;border-radius:.55rem;color:#f7f3ec;cursor:pointer;padding:.65rem 1rem}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #95efd2;outline-offset:4px}h1,h2,h3,h4{line-height:1.15}h4{font-weight:500}code{font-family:ui-monospace,monospace}.heading-l{font-size:clamp(2rem,6vw,5rem)}.heading-text{font-size:clamp(1.5rem,4vw,3rem)}.box{background:#95efd2;border-radius:14px;height:clamp(38px,12vw,80px);width:clamp(38px,12vw,80px)}.green{background:#95efd2}.purple{background:#897dff}.orange{background:#ffd28c}.gradient-pink{background:linear-gradient(140deg,#fbadce,#fc7f8e)}.gradient-purple{background:linear-gradient(140deg,#b5a1ff,#537ff7)}.center{align-items:center;display:flex;justify-content:center}.text-center{text-align:center}.panel{min-height:100vh;width:100%}.flair:not(img){background-image:url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyNDgiIGhlaWdodD0iMjQ4IiB2aWV3Qm94PSIwIDAgMjQ4IDI0OCI+PGRlZnM+PGxpbmVhckdyYWRpZW50IGlkPSJnIiB4Mj0iMSIgeTI9IjEiPjxzdG9wIHN0b3AtY29sb3I9IiNiNWExZmYiLz48c3RvcCBvZmZzZXQ9IjEiIHN0b3AtY29sb3I9IiM3NWQ4ZWQiLz48L2xpbmVhckdyYWRpZW50PjwvZGVmcz48ZyBmaWxsPSJ1cmwoI2cpIj48cGF0aCBkPSJNODcgMjBoNzR2NjdoNjd2NzRoLTY3djY3SDg3di02N0gyMFY4N2g2N1oiLz48L2c+PC9zdmc+");background-position:center;background-repeat:no-repeat;background-size:contain;height:80px;width:80px}.flair--3:not(img){background-image:url("data:image/svg+xml;base64,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")}.braces{font-size:1rem}img{max-width:100%}
/* External font programs are omitted; preserve readable fallback typography. */
body,button,input,h1,h2,h3,h4,p,span,div{font-family:inherit}body{font-family:system-ui,sans-serif}code,pre{font-family:ui-monospace,monospace}

window.__STYLEGALLERY_ASSETS__={};
console.clear();
const erToggle = document.querySelector("#erToggle");
const exitSlider = document.querySelector("#exitSlider");
const exitVal = document.querySelector("#exitVal");
let exitTs = 2.5;
exitSlider.addEventListener("input", () => {
  exitTs = parseFloat(exitSlider.value);
  exitVal.textContent = exitTs + "×";
});
function er(val) {
  return erToggle.checked ? val || true : false;
}
let btnTl;
function initBtn() {
  if (btnTl) {
    btnTl.kill();
  }
  gsap.set("#hoverBtn", { clearProps: "all" });
  btnTl = gsap.timeline({ paused: true }).to("#hoverBtn", {
    scale: 1.35,
    duration: 1.2,
    ease: "elastic.out(1.2, 0.3)",
    easeReverse: er("power2.out")
  }, 0);
}
initBtn();
document.querySelector("#hoverBtn").addEventListener("mouseenter", () => {
  btnTl.timeScale(1).play();
});
document.querySelector("#hoverBtn").addEventListener("mouseleave", () => {
  btnTl.timeScale(erToggle.checked ? exitTs : 1).reverse();
});
let ddOpen = false;
let ddTl;
const ddMenu = document.querySelector("#dropdownMenu");
const ddTrigger = document.querySelector("#dropdownTrigger");
const ddArrow = document.querySelector(".dd-arrow");
function initDD() {
  if (ddTl) {
    ddTl.kill();
  }
  gsap.set(ddMenu, { autoAlpha: 0, yPercent: -30, scale: 0.7 });
  gsap.set(ddArrow, { rotation: 0 });
  gsap.set(".dropdown-item", { opacity: 1, x: 0 });
  ddMenu.classList.remove("open");
  ddOpen = false;
  ddTl = gsap.timeline({ paused: true }).to(ddArrow, {
    rotation: 180,
    duration: 0.9,
    ease: "elastic.out(1.2, 0.3)",
    easeReverse: er("power2.inOut")
  }, 0).to(ddMenu, {
    autoAlpha: 1,
    yPercent: 0,
    scale: 1,
    duration: 1,
    ease: "elastic.out(1.2, 0.3)",
    easeReverse: er("power3.out")
  }, 0).from(".dropdown-item", {
    opacity: 0,
    x: -20,
    duration: 0.5,
    ease: "back.out(3)",
    easeReverse: er("power2.out"),
    stagger: 0.07
  }, 0.1);
}
initDD();
ddTrigger.addEventListener("click", (e) => {
  e.stopPropagation();
  ddOpen = !ddOpen;
  if (ddOpen) {
    ddMenu.classList.add("open");
    ddTl.timeScale(1).play();
  } else {
    ddTl.eventCallback("onReverseComplete", () => ddMenu.classList.remove("open"));
    ddTl.timeScale(erToggle.checked ? exitTs : 1).reverse();
  }
});
document.addEventListener("click", () => {
  if (ddOpen) {
    ddOpen = false;
    ddTl.eventCallback("onReverseComplete", () => ddMenu.classList.remove("open"));
    ddTl.timeScale(erToggle.checked ? exitTs : 1).reverse();
  }
});
let tipTl;
const tipBubble = document.querySelector("#tooltipBubble");
const tipWrap = document.querySelector("#tooltipWrap");
const tipTarget = document.querySelector(".tooltip-target");
function initTip() {
  if (tipTl) {
    tipTl.kill();
  }
  gsap.set(tipBubble, { autoAlpha: 0, y: 14, scale: 0.4 });
  gsap.set(tipTarget, { scale: 1 });
  tipTl = gsap.timeline({ paused: true }).to(tipBubble, {
    autoAlpha: 1,
    y: 0,
    scale: 1,
    duration: 1,
    ease: "elastic.out(1.2, 0.3)",
    easeReverse: er("power3.in")
  }, 0).to(tipTarget, {
    scale: 1.3,
    duration: 0.8,
    ease: "elastic.out(1.2, 0.3)",
    easeReverse: er("power3.in")
  }, 0);
}
initTip();
tipWrap.addEventListener("mouseenter", () => {
  tipTl.timeScale(1).play();
});
tipWrap.addEventListener("mouseleave", () => {
  tipTl.timeScale(erToggle.checked ? exitTs : 1).reverse();
});
erToggle.addEventListener("change", () => {
  initBtn();
  initDD();
  initTip();
});

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GSAP 3.15.0
Copyright 2026, GreenSock. All rights reserved.
Subject to the Standard No Charge License: https://gsap.com/standard-license.
The full notice in each original GSAP library file is preserved.


StyleGallery host adapter and replacement SVG subjects: locally authored.