LUMEN — Back to Top

Source Code

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

<div class="tbtt-widget" data-tb-btt-id="2156"><button aria-label="Return to top" class="tb-btt t2156" title="Back to top" type="button"><span class="shine"></span><span class="arr">↑</span><span class="copy"><b>SCROLL UP</b><small>BACK TO TOP</small></span></button></div>

/* TIPSBLOCKS TB-2156 — 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)}
.t2156{width:184px;height:61px;border-radius:33px;background:#3c4260;color:#fff;border:1px solid #737b9a;box-shadow:0 8px 21px #24273a38;gap:15px;overflow:hidden;justify-content:flex-start;padding:0 18px}.t2156 .shine{position:absolute;top:0;bottom:0;left:-55px;width:55px;transform:skewX(-24deg);background:linear-gradient(90deg,transparent,#d9daff4a,transparent);animation:a2156 12s ease-in-out infinite}.t2156 .arr{font:300 28px/1 Arial;color:#ded3f0;position:relative}.t2156 .copy{display:flex;flex-direction:column;gap:5px;align-items:flex-start;position:relative}.t2156 b{font:700 11.5px/1 Arial;letter-spacing:1px}.t2156 small{font:600 9.5px/1 Arial;letter-spacing:.85px;color:#d1cee1}.t2156:hover{background:#545d80;border-color:#b2b4cd}.t2156:hover .arr{transform:translateY(-5px)}@keyframes a2156{0%,17%,100%{transform:translateX(0) skewX(-24deg);opacity:0}42%,63%{transform:translateX(260px) skewX(-24deg);opacity:1}}
.t2156 .shine{background:linear-gradient(90deg,transparent,#e5deff65,transparent);animation:a2156v5 11s ease-in-out infinite}
@keyframes a2156v5{0%,16%,100%{transform:translateX(0) skewX(-24deg);opacity:0}53%{transform:translateX(125px) skewX(-24deg);opacity:1}79%{transform:translateX(263px) skewX(-24deg);opacity:.25}}

(()=>{'use strict';const host=document.querySelector('.tbtt-widget[data-tb-btt-id="2156"]');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.