Opening Ticket — Back to Opening

Source Code

Copy the HTML, CSS or JavaScript you need for your project.

<button aria-label="イベントの開幕、ページの先頭へ戻る" class="btt-control btt-2092 btt-hidden" data-btt="" type="button"><span class="ticket-spine">ENTRY <span>2026</span></span><span class="ticket-body"><span class="ticket-label">FIELD NOTES · FEST</span><b>BACK TO<br/>OPENING</b><small>RETURN TO THE TOP</small><span aria-hidden="true" class="ticket-stamp">RE</span></span></button>

 .btt-control{box-sizing:border-box;appearance:none;cursor:pointer;user-select:none;-webkit-tap-highlight-color:transparent}.btt-control:focus-visible{outline:3px solid #e6a643;outline-offset:5px}.btt-hidden{opacity:0;visibility:hidden;pointer-events:none}.btt-visible{opacity:1;visibility:visible;pointer-events:auto} @media(prefers-reduced-motion:reduce){.btt-control,.btt-control *{animation-duration:.01ms!important;transition-duration:.01ms!important}}
 .btt-2092{position:fixed;right:clamp(15px,3vw,43px);bottom:25px;z-index:40;width:222px;height:118px;border:0;background:transparent;color:#2a1b29;display:flex;text-align:left;padding:0;opacity:0;transform:translateY(20px) rotate(-3deg);transition:opacity .3s,transform .3s,visibility .3s}.btt-2092.btt-visible{opacity:1;transform:rotate(-3deg)}.ticket-spine{width:47px;display:flex;justify-content:space-between;align-items:center;flex-direction:column;writing-mode:vertical-rl;font:900 11px/1 Arial;letter-spacing:.15em;padding:14px 0;background:#efb65e;border-radius:8px 0 0 8px;border-right:2px dashed #a67a5e}.ticket-spine span{font-size:8px}.ticket-body{flex:1;position:relative;display:flex;flex-direction:column;align-items:start;justify-content:center;padding:12px 12px;background:#fff2d7;border-radius:0 8px 8px 0;box-shadow:0 16px 27px #0005;clip-path:polygon(0 0,100% 0,100% 40%,94% 50%,100% 60%,100% 100%,0 100%)}.ticket-label{font:800 8px Arial;letter-spacing:.15em;color:#8d5d51}.ticket-body b{font:900 19px/.97 Arial;letter-spacing:-.03em;margin:5px 0;color:#322038}.ticket-body small{font:800 9px Arial;letter-spacing:.08em}.ticket-stamp{position:absolute;right:13px;bottom:9px;display:grid;place-items:center;width:27px;height:27px;border:2px solid #ad6960;border-radius:50%;color:#ad6960;font:800 12px Arial;transform:rotate(-15deg);animation:stampFlash 4s ease-in-out infinite}.btt-2092:hover{transform:rotate(0deg) translateY(-7px)}.btt-2092.is-going .ticket-stamp{background:#ad6960;color:white}@keyframes stampFlash{0%,88%,100%{opacity:.55}93%{opacity:1}}@media(max-width:600px){.btt-2092{right:13px;bottom:17px;width:182px;height:101px}.ticket-spine{width:36px;font-size:9px}.ticket-body b{font-size:16px}.ticket-label{font-size:7px}.ticket-body small{font-size:8px}.ticket-stamp{right:9px;bottom:7px;width:23px;height:23px;font-size:10px}}

(()=>{'use strict';const el=document.querySelector('[data-btt]');if(!el)return;const footerOnly=false;const reduce=window.matchMedia('(prefers-reduced-motion: reduce)');let raf=0;function update(){raf=0;const p=Math.max(0,Math.min(1,window.scrollY/Math.max(1,document.documentElement.scrollHeight-window.innerHeight)));if(!footerOnly){const shown=window.scrollY>170;el.classList.toggle('btt-visible',shown);el.classList.toggle('btt-hidden',!shown);el.tabIndex=shown?0:-1;el.setAttribute('aria-hidden',String(!shown));}el.style.setProperty('--progress',p.toFixed(3));const field=el.querySelector('[data-state]');}function onScroll(){if(!raf)raf=requestAnimationFrame(update)}window.addEventListener('scroll',onScroll,{passive:true});window.addEventListener('resize',onScroll,{passive:true});el.addEventListener('click',()=>{el.classList.add('is-going');window.scrollTo({top:0,behavior:reduce.matches?'auto':'smooth'});window.setTimeout(()=>el.classList.remove('is-going'),650)});update()})();

How to Use

Insert the HTML button near the end of body, load the CSS, and include JavaScript using defer. Test scrolling, returning to the top, and positioning on mobile.

Use Case

Concerts, festivals and events.

Technical Notes

Keep controls usable on touch devices. Test keyboard focus and reduced-motion preferences.

Mobile：Check tap target, visibility and positioning on small screens.

Browser：Designed for current Chrome, Edge, Firefox and Safari.

Reduced Motion：CSS animations respect the reduced-motion preference.