READING RING — Back to Top

Source Code

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

<div class="tbtt-widget" data-tb-btt-id="2149"><button aria-label="Return to top" class="tb-btt t2149" title="Back to top" type="button"><span class="gauge"></span><span class="content"><span class="arr">↑</span><strong>TOP</strong><small class="pct">0%</small></span></button></div>

/* TIPSBLOCKS TB-2149 — installable self-contained UI. */
.tbtt-widget{position:fixed;z-index:9999;right:clamp(12px,2vw,30px);bottom:clamp(16px,2.5vw,36px);visibility:hidden;opacity:0;pointer-events:none;transform:translateY(12px);transition:opacity .36s ease,transform .45s ease,visibility .36s ease}
.tbtt-widget.is-shown{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}
.tbtt-widget--edge{right:0}
.tbtt-widget--footer{position:absolute;right:0;bottom:0;visibility:visible;opacity:1;pointer-events:auto;transform:none}
.tbtt-widget .tb-btt{--ease:cubic-bezier(.22,.67,.18,1);--hover:.85s;font-family:Inter,"Helvetica Neue",Arial,"Noto Sans CJK JP",sans-serif}
.tbtt-widget .tb-btt:focus-visible{outline:3px solid #1593b1;outline-offset:5px}
.tbtt-widget .tb-btt span,.tbtt-widget .tb-btt i,.tbtt-widget .tb-btt b,.tbtt-widget .tb-btt em,.tbtt-widget .tb-btt small,.tbtt-widget .tb-btt strong{pointer-events:none}
@media(max-width:670px){.tbtt-widget:not(.tbtt-widget--footer){right:12px;bottom:18px}.tbtt-widget--edge{right:0!important}.tbtt-widget--footer{right:0}}
@media(prefers-reduced-motion:reduce){.tbtt-widget,.tbtt-widget *,.tbtt-widget *::before,.tbtt-widget *::after{animation:none!important;transition-duration:.01ms!important}}
.tb-btt{appearance:none;border:0;padding:0;line-height:1;isolation:isolate;position:relative;display:inline-flex;align-items:center;justify-content:center;flex:none;cursor:pointer;-webkit-tap-highlight-color:transparent;white-space:nowrap;font-synthesis:none;text-rendering:optimizeLegibility;color:#263830;transition:color var(--hover) var(--ease),background var(--hover) var(--ease),border-color var(--hover) var(--ease),box-shadow var(--hover) var(--ease),transform var(--hover) var(--ease);outline-offset:5px}
.tb-btt:focus-visible{outline:3px solid #1593b1;outline-offset:5px}
.tb-btt span,.tb-btt i,.tb-btt b,.tb-btt em,.tb-btt small,.tb-btt strong{pointer-events:none;box-sizing:border-box}
.tb-btt span,.tb-btt i,.tb-btt b,.tb-btt em,.tb-btt small,.tb-btt strong,.tb-btt::before,.tb-btt::after{transition-duration:var(--hover);transition-timing-function:var(--ease)}
.t2149{width:90px;height:90px;border-radius:50%;background:#f0f3ee;color:#244d3f;box-shadow:0 6px 20px #2b594023}.t2149 .gauge{position:absolute;inset:4px;border-radius:50%;background:conic-gradient(#39806c var(--progress,0%),#ced9d0 0);-webkit-mask:radial-gradient(farthest-side,transparent calc(100% - 4px),#000 calc(100% - 3px));mask:radial-gradient(farthest-side,transparent calc(100% - 4px),#000 calc(100% - 3px))}.t2149 .content{display:flex;flex-direction:column;align-items:center;gap:4px}.t2149 .arr{font:300 23px/1 Arial;animation:a2149 9s ease-in-out infinite}.t2149 strong{font:700 10px/1 Arial;letter-spacing:1.5px;padding-left:2px}.t2149 .pct{font:600 9.5px/1 Arial;color:#6b8f80}.t2149:hover .gauge{filter:drop-shadow(0 0 2px #39806c)}.t2149:hover .arr{color:#a56a49}@keyframes a2149{0%,18%,100%{transform:translateY(0)}37%{transform:translateY(-4px)}55%{transform:translateY(0)}}
.t2149 .arr{animation:a2149v5 9.2s cubic-bezier(.25,.67,.25,1) infinite}
@keyframes a2149v5{0%,12%,100%{transform:translateY(1px);opacity:.72}37%,61%{transform:translateY(-6px);opacity:1}80%{transform:translateY(1px);opacity:.72}}
.t2149:hover{background:#deede3;box-shadow:0 8px 24px #2b594032}

(()=>{'use strict';const host=document.querySelector('.tbtt-widget[data-tb-btt-id="2149"]');if(!host)return;const btn=host.querySelector('.tb-btt');const reduce=window.matchMedia('(prefers-reduced-motion: reduce)');function update(){const y=Math.max(0,window.scrollY||document.documentElement.scrollTop||0);if(!host.classList.contains('tbtt-widget--footer'))host.classList.toggle('is-shown',y>200);const all=Math.max(1,document.documentElement.scrollHeight-window.innerHeight);const pct=Math.round(Math.min(100,100*y/all));btn.style.setProperty('--progress',pct+'%');const pctNode=btn.querySelector('.pct');if(pctNode)pctNode.textContent=pct+'%';}btn.addEventListener('click',()=>window.scrollTo({top:0,behavior:reduce.matches?'auto':'smooth'}));window.addEventListener('scroll',update,{passive:true});window.addEventListener('resize',update,{passive:true});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

General-purpose navigation for editorial sites, business websites, and content-heavy pages.

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.