PRACTICAL WEB TIP

Precision / Mechanical — Back to Top

Precision / Mechanical. Compact instrument-like plate with high-quality material hierarchy. Continuous motion: Inner brushed surface shimmer passes sporadically. Hover: Mechanical plate compresses, bolt shadows change.

Design Preview

See the design above before trying the scroll interaction.

LOOK CLOSELY

IN PAGE CONTEXT

Live Demo

Press Try scrolling inside the frame, or scroll inside it. The button appears at the lower right and returns you to the top.

Source Code

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

HTML

<div class="tbtt-2202" data-tb-btt-id="2202"><button aria-label="Return to top" class="btt btt-2202" type="button"><span class="bolt a"></span><span class="bolt b"></span><span class="up"><svg aria-hidden="true" class="arrow" fill="none" viewbox="0 0 40 40"><path d="M20 33V7M9 18 20 7l11 11" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2.3"></path></svg></span><span class="title">PAGE TOP</span></button></div>

CSS


.tbtt-2202{position:fixed;z-index:2147480000;right:clamp(12px,2vw,28px);bottom:clamp(16px,2.2vw,30px);opacity:0;visibility:hidden;pointer-events:none;transform:translateY(12px);transition:opacity .4s ease,visibility .4s,transform .4s ease;box-sizing:border-box} 
.tbtt-2202.is-shown{opacity:1;visibility:visible;pointer-events:auto;transform:none}
.tbtt-2202 .btt{position:relative!important;left:auto!important;right:auto!important;top:auto!important;bottom:auto!important;margin:0!important}
.tbtt-2202 button{font:inherit}
.tbtt-2202 button:focus-visible{outline:3px solid #1276ad;outline-offset:4px}
@media(max-width:640px){.tbtt-2202:not(.tbtt-2202--footer){right:12px;bottom:14px;transform-origin:bottom right;scale:.82}}
@media(prefers-reduced-motion:reduce){.tbtt-2202,.tbtt-2202 *, .tbtt-2202 *::before,.tbtt-2202 *::after{animation:none!important;transition-duration:.01ms!important}}

.tbtt-2202 .btt{--enter:0;position:absolute;z-index:3;right:23px;bottom:22px;appearance:none;border:0;margin:0;padding:0;cursor:pointer;display:block;overflow:visible;text-decoration:none;line-height:1;color:inherit;touch-action:manipulation;transition:transform .8s cubic-bezier(.2,.7,.2,1), box-shadow .8s ease,background-color .8s ease, border-color .8s ease, color .8s ease;transform-origin:center;user-select:none;outline-offset:5px}
.tbtt-2202 .btt:focus-visible{outline:3px solid #257ae5}
.tbtt-2202 .btt svg.arrow{display:block;width:30px;height:30px}
.tbtt-2202 .btt>*, .tbtt-2202 .btt span, .tbtt-2202 .btt i{pointer-events:none}
.tbtt-2202 .btt:hover{transition-duration:.82s}
.tbtt-2202 .btt:hover .arrow{transition:transform .85s cubic-bezier(.18,.8,.15,1)}
.tbtt-2202 .btt .arrow{transition:transform .85s cubic-bezier(.18,.8,.15,1)}
.tbtt-2202 .btt-2202{width:137px;height:92px;border-radius:8px;background:linear-gradient(145deg,#687777,#b1bdba 30%,#687775 70%);box-shadow:inset 2px 2px 1px #dfe6e0aa,inset -3px -4px 5px #24383877,0 11px 14px #0003;color:#112d30}
.tbtt-2202 .btt-2202 .bolt{position:absolute;width:6px;height:6px;border-radius:50%;background:#354644;box-shadow:inset 0 1px 1px #0009,0 1px 1px #fff8}
.tbtt-2202 .btt-2202 .bolt.a{top:12px;left:13px}
.tbtt-2202 .btt-2202 .bolt.b{bottom:12px;right:13px}
.tbtt-2202 .btt-2202 .up{position:absolute;top:9px;left:54px;animation:dim-motor 8s ease-in-out infinite}
.tbtt-2202 .btt-2202 .up svg{width:31px;height:31px}
.tbtt-2202 .btt-2202 .title{position:absolute;bottom:20px;left:0;right:0;font:700 12px Arial;letter-spacing:.16em}
.tbtt-2202 .btt-2202:hover{transform:translateY(4px);box-shadow:inset 2px 2px 3px #24383888,0 5px 9px #0004}
@keyframes rise{0%,15%,100%{transform:translateY(0)}55%{transform:translateY(-6px)}}
@keyframes linewalk{0%,12%{transform:translateX(-105%)}55%,76%{transform:translateX(105%)}100%{transform:translateX(105%)}}
@keyframes breathe{0%,100%{opacity:.35}50%{opacity:1}}
@keyframes turn{to{transform:rotate(360deg)}}
@keyframes gentle-tilt{0%,13%,100%{transform:rotate(-5deg)}42%,60%{transform:rotate(4deg)}}
@keyframes dimmove{0%,100%{opacity:.32;transform:translateY(2px)}50%{opacity:1;transform:translateY(-3px)}}
@keyframes marker-move{0%,12%,100%{top:0}55%,75%{top:56px}}
@keyframes rotate-slow{to{transform:rotate(360deg)}}
@keyframes seam-shift{to{background-position:64px 0}}
@keyframes editorial-rule{0%,16%,100%{width:68px}55%,74%{width:119px}}
@keyframes bracket-tint{0%,25%,100%{border-color:#bd4e36}53%{border-color:#273e36}}
@keyframes instrument-ring{0%,100%{box-shadow:0 3px 17px #0002}50%{box-shadow:0 3px 17px #bb683c68}}
@keyframes rule-breathe{0%,100%{width:33px}55%{width:110px}}
@keyframes stagger-rise{0%,24%,100%{transform:translateY(5px) skewX(-17deg)}52%{transform:translateY(-6px) skewX(-17deg)}}
@keyframes ridge-move{0%,100%{translate:0 0}45%{translate:0 -5px}}
@keyframes banner-lane{0%,100%{left:0}50%{left:65%}}
@keyframes marquee{to{transform:translateX(-33%)}}
@keyframes spine-grow{0%,100%{transform:scaleY(.33)}60%{transform:scaleY(1)}}
@keyframes dim-motor{0%,100%{opacity:.8}50%{opacity:1}}
@keyframes railgrow{0%,100%{transform:scaleX(.25)}60%{transform:scaleX(1)}}

JavaScript

/* TIPSBLOCKS TB-2202 standalone Back to Top. */
(()=>{'use strict';
 const root=document.querySelector('.tbtt-2202[data-tb-btt-id="2202"]'); if(!root)return;
 const btn=root.querySelector('.btt');if(!btn)return;
 const reduce=window.matchMedia('(prefers-reduced-motion: reduce)');
 function update(){
  const y=Math.max(0,window.scrollY||document.documentElement.scrollTop||0);
  root.classList.toggle('is-shown',y>180);
  const total=Math.max(1,document.documentElement.scrollHeight-window.innerHeight);
  const percent=Math.round(Math.max(0,Math.min(100,100*y/total)));
  btn.style.setProperty('--progress-deg',percent*3.6+'deg');
  const value=btn.querySelector('.value');
  if(value && btn.classList.contains('btt-2186'))value.innerHTML=String(percent).padStart(2,'0')+'<span>%</span>';
 }
 btn.addEventListener('click',function(event){event.preventDefault();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 Back to Top navigation for editorial, business, and content websites.

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.