16 CSS Fade In Animation Designs 01 / 16

Pure Opacity Hero Fade

A layered hero section where eyebrow, heading, paragraph, CTA buttons, and indicator dots each fade in sequentially using staggered animation-delay on a single opacity keyframe.

Pure CSS MIT licensed
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The code

<div class="fi-01">
  <div class="fi-01__inner">
    <div class="fi-01__eyebrow">Design System v3.0</div>
    <h1 class="fi-01__heading">Build <span>Beautiful</span><br>Interfaces Fast</h1>
    <p class="fi-01__sub">A production-ready design system with 200+ components, dark mode, and accessibility built in.</p>
    <div class="fi-01__cta">
      <button class="fi-01__btn fi-01__btn--primary">Get Started</button>
      <button class="fi-01__btn fi-01__btn--ghost">View Docs</button>
    </div>
    <div class="fi-01__dots">
      <div class="fi-01__dot"></div>
      <div class="fi-01__dot"></div>
      <div class="fi-01__dot"></div>
    </div>
  </div>
</div>
.fi-01{
  --bg:#0a0a12;--accent:#6c63ff;--text:#f0eeff;--sub:#9d97c8;
  --dur:1.2s;--ease:cubic-bezier(.16,1,.3,1);
  font-family:'DM Sans',sans-serif;
  min-height:320px;border-radius:20px;
  display:flex;align-items:center;justify-content:center;
  padding:40px;overflow:hidden;position:relative;
}
.fi-01::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse 60% 50% at 50% 0%,rgba(108,99,255,.18),transparent);
  pointer-events:none;
}
.fi-01 *,.fi-01 *::before,.fi-01 *::after{box-sizing:border-box;margin:0;padding:0}
.fi-01 ::selection{background:var(--accent);color:#fff}

.fi-01__inner{text-align:center;position:relative;z-index:1}
.fi-01__eyebrow{
  font-size:.75rem;font-weight:500;letter-spacing:.2em;text-transform:uppercase;
  color:var(--accent);margin-bottom:20px;
  opacity:0;animation:fi-01-fade var(--dur) var(--ease) .1s forwards;
}
.fi-01__heading{
  font-family:'Syne',sans-serif;font-size:clamp(2rem,5vw,3.2rem);font-weight:800;
  color:var(--text);line-height:1.1;margin-bottom:16px;
  opacity:0;animation:fi-01-fade var(--dur) var(--ease) .35s forwards;
}
.fi-01__heading span{
  background:linear-gradient(135deg,#6c63ff,#a78bfa);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.fi-01__sub{
  font-size:1rem;color:var(--sub);line-height:1.6;max-width:440px;margin:0 auto 28px;
  opacity:0;animation:fi-01-fade var(--dur) var(--ease) .55s forwards;
}
.fi-01__cta{
  display:inline-flex;gap:12px;align-items:center;
  opacity:0;animation:fi-01-fade var(--dur) var(--ease) .75s forwards;
}
.fi-01__btn{
  padding:12px 28px;border-radius:10px;font-size:.95rem;font-weight:500;cursor:pointer;
  border:none;transition:transform .2s,box-shadow .2s;
}
.fi-01__btn:hover{transform:translateY(-2px)}
.fi-01__btn--primary{
  background:var(--accent);color:#fff;
  box-shadow:0 8px 24px rgba(108,99,255,.35);
}
.fi-01__btn--primary:hover{box-shadow:0 12px 32px rgba(108,99,255,.5)}
.fi-01__btn--ghost{
  background:rgba(108,99,255,.1);color:var(--text);
  border:1px solid rgba(108,99,255,.3);
}
.fi-01__dots{
  display:flex;gap:8px;justify-content:center;margin-top:24px;
  opacity:0;animation:fi-01-fade var(--dur) var(--ease) .95s forwards;
}
.fi-01__dot{width:6px;height:6px;border-radius:50%;background:var(--accent);opacity:.3}
.fi-01__dot:nth-child(2){opacity:.6}
.fi-01__dot:nth-child(3){opacity:1}

@keyframes fi-01-fade{from{opacity:0}to{opacity:1}}
@media(prefers-reduced-motion:reduce){
  .fi-01 *{animation:none!important;opacity:1!important}
}

How this works

Five elements each carry an identical animation: fi-01-fade var(--dur) var(--ease) Xs forwards declaration — only the delay differs: 0.1s, 0.35s, 0.55s, 0.75s, 0.95s. The keyframe is a one-liner: @keyframes fi-01-fade { from { opacity: 0 } to { opacity: 1 } }. Because animation-fill-mode: forwards locks each element in its final state, nothing snaps back after animating.

The cubic-bezier(.16, 1, .3, 1) easing is an ease-out with a fast initial velocity and long deceleration tail, giving each element a snappy entrance. The --dur custom property makes the whole sequence trivially speed-adjustable from one token.

Customize

  • Change the overall pace by editing --dur: 1.2s on .fi-01 — all five elements scale proportionally.
  • Shift the first element's delay (.1s) to create a longer pause before the sequence begins.
  • Swap the easing from cubic-bezier(.16,1,.3,1) to ease for a softer, less snappy entrance.
  • Edit the gradient in ::before (radial glow) by changing the 60% spread and .18 alpha to control ambient light intensity.

Watch out for

  • The hero section uses animation-fill-mode: forwards — without it, all elements snap back to opacity: 0 after animating. Never omit fill-mode on one-shot fades.
  • In Safari, animation-fill-mode combined with opacity: 0 on the base element occasionally causes a flash-of-content before the animation starts — add will-change: opacity to suppress it.
  • Stacking too many sequenced delays past 1.5s total makes the page feel broken to fast readers who have already scrolled past the element.

Browser support

ChromeSafariFirefoxEdge
60+ 12+ 60+ 60+

animation-fill-mode: forwards supported in all modern browsers

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