Bluesky: scroll-to-top floating button
A floating button appears after scrolling, letting you glide back to the top of the timeline in one click.
Code to copy
// Floating "scroll to top" button appears after you scroll down
(function () {
if (document.getElementById('jz-bsk-scrolltop')) { return; }
var btn = document.createElement('button');
btn.id = 'jz-bsk-scrolltop';
btn.type = 'button';
btn.textContent = '↑';
btn.style.cssText = [
'position:fixed', 'right:24px', 'bottom:24px', 'z-index:99999',
'width:44px', 'height:44px', 'border-radius:50%',
'border:0', 'background:#0085ff', 'color:#fff',
'font-size:22px', 'cursor:pointer',
'box-shadow:0 4px 16px rgba(0,0,0,0.25)',
'display:none'
].join(';');
btn.addEventListener('click', function () {
window.scrollTo({ top: 0, behavior: 'smooth' });
});
document.body.appendChild(btn);
function toggle() {
btn.style.display = (window.scrollY > 600) ? 'block' : 'none';
}
toggle();
window.addEventListener('scroll', toggle, { passive: true });
})();How to use this example
- Copy the code with the button above.
- Install JustZix (2 minutes) and open the extension on the target page.
- Add a new rule matching that page.
- Paste the code into the rule's JavaScript panel and save — it runs on every page visit.
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