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Page side-by-side

Forward / back page transition

CSS

Namespaced classes and motion tokens you can retune. The reduced-motion guard ships with the snippet.

/* Transitions.dev — Page side-by-side */

/*
  Usage:
    <div class="t-page-slide" data-page="1">
      <section class="t-page" data-page-id="1">…</section>
      <section class="t-page" data-page-id="2">…</section>
    </div>

  State: set data-page="1" or "2" on .t-page-slide.
  Page 1 exits to the left, page 2 exits to the right.
  --page-exit-enabled (0/1) disables the outgoing slide.
*/

:root {
  --page-slide-dur: 250ms;
  --page-fade-dur: 250ms;
  --page-slide-distance: 8px;
  --page-blur: 3px;
  --page-stagger: 0ms;
  --page-exit-enabled: 1;
  --page-slide-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --page-fade-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

.t-page-slide {
  position: relative;
}
.t-page-slide .t-page[data-page-id="1"] {
  --t-page-from-x: calc(var(--page-slide-distance) * -1);
}
.t-page-slide .t-page[data-page-id="2"] {
  --t-page-from-x: var(--page-slide-distance);
}
.t-page-slide .t-page {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transform: translateX(calc(var(--t-page-from-x, 0px) * var(--page-exit-enabled)));
  filter: blur(calc(var(--page-blur) * var(--page-exit-enabled)));
  transition:
    opacity   var(--page-fade-dur)  var(--page-fade-ease),
    transform var(--page-slide-dur) var(--page-slide-ease),
    filter    var(--page-slide-dur) var(--page-slide-ease);
  will-change: opacity, transform, filter;
}
.t-page-slide[data-page="1"] .t-page[data-page-id="1"],
.t-page-slide[data-page="2"] .t-page[data-page-id="2"] {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
  filter: blur(0);
  transition-delay: var(--page-stagger);
}

@media (prefers-reduced-motion: reduce) {
  .t-page-slide .t-page { transition: none !important; }
}

React

Self-contained component; the styles inject themselves on first import.

// Transitions.dev — Page side-by-side (React, self-contained)
// Drop into any React project — no extra CSS file needed.

import { useState } from "react";

// ── Styles ──────────────────────────────────────────────
// Auto-injected on first import. Idempotent (guarded by
// the element id) and SSR-safe (no-ops without document).
const __TRANSITION_STYLES = `
:root {
  --page-slide-dur: 250ms;
  --page-fade-dur: 250ms;
  --page-slide-distance: 8px;
  --page-blur: 3px;
  --page-stagger: 0ms;
  --page-exit-enabled: 1;
  --page-slide-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --page-fade-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

.t-page-slide {
  position: relative;
}
.t-page-slide .t-page[data-page-id="1"] {
  --t-page-from-x: calc(var(--page-slide-distance) * -1);
}
.t-page-slide .t-page[data-page-id="2"] {
  --t-page-from-x: var(--page-slide-distance);
}
.t-page-slide .t-page {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transform: translateX(calc(var(--t-page-from-x, 0px) * var(--page-exit-enabled)));
  filter: blur(calc(var(--page-blur) * var(--page-exit-enabled)));
  transition:
    opacity   var(--page-fade-dur)  var(--page-fade-ease),
    transform var(--page-slide-dur) var(--page-slide-ease),
    filter    var(--page-slide-dur) var(--page-slide-ease);
  will-change: opacity, transform, filter;
}
.t-page-slide[data-page="1"] .t-page[data-page-id="1"],
.t-page-slide[data-page="2"] .t-page[data-page-id="2"] {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
  filter: blur(0);
  transition-delay: var(--page-stagger);
}

@media (prefers-reduced-motion: reduce) {
  .t-page-slide .t-page { transition: none !important; }
}
`;
if (typeof document !== "undefined" && !document.getElementById("transitions-p8")) {
  const __style = document.createElement("style");
  __style.id = "transitions-p8";
  __style.textContent = __TRANSITION_STYLES;
  document.head.appendChild(__style);
}

// Pair with the CSS from the CSS tab (.t-page-slide + data-page 1|2).
export function PageSlide() {
  const [page, setPage] = useState(1);

  return (
    <div className="t-page-slide" data-page={page}>
      <section className="t-page" data-page-id="1">
        <h2>Page 1</h2>
        <button type="button" onClick={() => setPage(2)}>Next</button>
      </section>
      <section className="t-page" data-page-id="2">
        <h2>Page 2</h2>
        <button type="button" onClick={() => setPage(1)}>Back</button>
      </section>
    </div>
  );
}