Atoll

Medium

A wide flat summit ringed by four contours and nothing else, the quietest relief in the family.

“Copy the hero” is the styles and the SVG, carrying the colours and speed you set above. “Copy as a section” adds the wrapper a hero actually needs: the SVG absolute behind the copy, inert to the pointer, and a scrim so the heading holds. The Free licence asks for one visible credit per page: Animation by Pulsar, linked to Pulsar. Licence

Tech: CSS, no JavaScript
Longest band: 25 s, mirrored, loops
Canvas: 1600 by 900, stretches to fill
Default tone: Dark ground: ground #0b0a16, ink #ffffff
Family: Contour · Lines
Tags: contour rings arcs

The four variables

Set any of these on the section, or on any ancestor, and the hero follows. Nothing else in the file needs editing.

--pulsar-hero-bg: the ground, default #0b0a16
--pulsar-hero-ink: the strokes, default #ffffff
--pulsar-accent: the accented strokes
--pulsar-hero-speed: a rate: 2 is twice as fast, 0.5 half speed

Files

Animated SVG

One file, styles inside it, animates in an img tag or on its own.Download animated SVG

The code

As a section

<!-- Pulsar by Business Nebula · "hero-contour-atoll" · https://pulsaricons.com | Licence: https://pulsaricons.com/legal/licence | Free-licence credit: Animation by Pulsar, linked to https://pulsaricons.com | Business Nebula: https://businessnebula.com.au -->
<style>
.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding: 5rem 5%;
  color: #ffffff;
  background: #0b0a16;
}
.hero > .pulsar-hero {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
/* A scrim under the copy, heavier on the side the text sits on. */
.hero-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(100deg, #0b0a16 0%, color-mix(in oklab, #0b0a16 78%, transparent) 40%, transparent 68%);
}
.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 40rem;
}
.hero-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.8;
}
/* Generated by scripts/hero-contour.mjs from heroes/hero-contour-atoll/params.json.
   Consumers set four custom properties on any ancestor:
     --pulsar-hero-bg     the ground          (default #0b0a16)
     --pulsar-hero-ink    the contour rings   (default #ffffff)
     --pulsar-accent      the index rings     (default #8a7df7)
     --pulsar-hero-speed  a rate; 2 is twice as fast, 0.5 half speed */
.pulsar-hero-contour-atoll {
  display: block;
  width: 100%;
  height: 100%;
  color: var(--pulsar-hero-ink, #ffffff);
}
.pulsar-hero-contour-atoll .hero-contour-atoll-ground {
  fill: var(--pulsar-hero-bg, #0b0a16);
}
.pulsar-hero-contour-atoll .hero-contour-atoll-ring {
  fill: none;
  stroke: currentColor;
}
.pulsar-hero-contour-atoll .hero-contour-atoll-accent {
  stroke: var(--pulsar-accent, #8a7df7);
}
.pulsar-hero-contour-atoll .hero-contour-atoll-ground-stop {
  stop-color: var(--pulsar-hero-bg, #0b0a16);
}
.pulsar-hero-contour-atoll .hero-contour-atoll-band {
  transform-box: view-box;
  will-change: transform;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
  animation-direction: alternate;
}
.pulsar-hero-contour-atoll .hero-contour-atoll-band-1 {
  transform-origin: 1240px 460px;
  animation-name: hero-contour-atoll-band-1;
  animation-duration: calc(25s / var(--pulsar-hero-speed, 1));
}
@keyframes hero-contour-atoll-band-1 {
  from {
    transform: translate(-30px, -16px) scale(0.98);
  }
  to {
    transform: translate(30px, 16px) scale(1.02);
  }
}
@media (prefers-reduced-motion: reduce) {
  .pulsar-hero-contour-atoll .hero-contour-atoll-band-1 {
    animation: none;
  }
}
</style>
<section class="hero">
  <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" class="pulsar pulsar-hero pulsar-hero-contour-atoll" data-pulsar="hero-contour-atoll" preserveAspectRatio="none" viewBox="0 0 1600 900"><metadata><rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/"><rdf:Description><dc:title>hero-contour-atoll</dc:title><dc:creator>Pulsar by Business Nebula</dc:creator><dc:publisher>Business Nebula</dc:publisher><dc:source>https://pulsaricons.com/icons</dc:source><dc:relation>https://businessnebula.com.au</dc:relation><dc:rights>Pulsar licence, https://pulsaricons.com/legal/licence</dc:rights></rdf:Description></rdf:RDF></metadata><defs><linearGradient id="hero-contour-atoll-veil" x1="0" x2="1600" y1="0" y2="0" gradientUnits="userSpaceOnUse"><stop class="hero-contour-atoll-ground-stop" offset="0" stop-opacity=".88"></stop><stop class="hero-contour-atoll-ground-stop" offset=".32" stop-opacity=".5"></stop><stop class="hero-contour-atoll-ground-stop" offset=".66" stop-opacity=".1"></stop><stop class="hero-contour-atoll-ground-stop" offset="1" stop-opacity="0"></stop></linearGradient></defs><rect width="1600" height="900" class="hero-contour-atoll-ground"></rect><g class="hero-contour-atoll-band hero-contour-atoll-band-1"><path stroke-opacity=".25" d="M1492.2 495.4c-4.6 28.3-19.9 57.5-39.7 80.4s-48.6 43.7-79.3 57c-30.6 13.3-69.1 21.8-104.6 22.7-35.6.8-75.6-6.2-108.9-17.7-33.4-11.5-65.7-30.6-91.2-51.5-25.5-21-48.1-47.2-61.9-74.2-13.7-27-23.1-59.2-20.7-87.8 2.5-28.6 15.3-60.5 35.3-83.5 20-23.1 53-42.8 84.8-54.6 31.9-11.8 70.8-16.2 106.2-16.3 35.5-.1 72.9 5.3 106.7 15.5 33.7 10.2 69.2 25.6 96 45.8s51.9 47.9 64.7 75.3c12.9 27.4 17.1 60.7 12.6 88.9" class="hero-contour-atoll-ring"></path><path stroke-opacity=".75" stroke-width="1.82" d="M1593.9 509.7c-6.9 39.4-30.3 79.7-58.5 111.3s-68.3 60.1-110.9 78.3c-42.7 18.1-96 30-145.1 30.7-49 .6-103.9-10.4-149.3-26.8s-87.8-43.1-123.1-71.7c-35.2-28.5-67.5-62.7-88.5-99.7-20.9-37-38.8-82-37.1-122.2 1.8-40.2 18.9-87.2 47.6-119.1 28.7-31.8 79.1-57.6 124.7-72.2 45.5-14.5 100-16.1 148.8-15 48.8 1 97.3 8.3 143.8 21.5 46.4 13.1 96.7 30.8 135.1 57.5 38.4 26.6 76.6 64.6 95.4 102.5s24 85.6 17.1 124.9" class="hero-contour-atoll-ring hero-contour-atoll-accent"></path><path stroke-opacity=".52" stroke-width="1.8" d="M1698.4 524.4c-9.6 50.7-42.3 101.9-79.4 142.1-37.1 40.3-88.4 76.4-143.2 99.3s-123.1 38.2-185.5 38.4-131.9-15.7-189-37.3C1044.3 745.4 993 711 948 675c-45-35.9-87.5-77-116.7-123.7-29.1-46.8-58.5-104.7-58.3-156.9.2-52.3 21.4-115.8 59.4-156.5 37.9-40.8 108.2-71.8 168.4-88.1s130.6-12.6 192.5-9.7c61.9 3 119.7 12 178.8 27.6 59 15.5 124.6 33.4 175.4 65.9s104.2 80.4 129.4 128.9c25.1 48.4 31.2 111.2 21.5 161.9" class="hero-contour-atoll-ring"></path><path stroke-opacity=".65" stroke-width="2.2" d="M1805.7 539.5c-12.7 62.2-55.9 124.2-102.3 173s-109.2 92.3-176.3 119.9c-67 27.6-150.4 46.2-226 45.7-75.7-.6-159.5-22.1-227.8-49s-127.2-69.3-181.9-112.4-108-89.8-146.4-146.2c-38.5-56.3-82-127.3-84.3-191.9-2.3-64.7 22.7-146.2 70.5-195.9C779 133.1 871.9 97.6 947.4 80.6c75.6-17.1 162.4-5.7 237.2-.1s140.2 16.1 211.7 33.6c71.4 17.4 152.9 33.6 216.9 71.1 63.9 37.6 134.5 95.2 166.6 154.3 32 59 38.6 137.8 25.9 200" class="hero-contour-atoll-ring"></path></g><rect width="1600" height="900" fill="url(#hero-contour-atoll-veil)" class="hero-contour-atoll-veil"></rect></svg>
  <div class="hero-scrim" aria-hidden="true"></div>
  <div class="hero-copy">
    <h1>Your heading</h1>
    <p>Your supporting sentence.</p>
    <a href="#">Your call to action</a>
  </div>
</section>

animation.css

/* Generated by scripts/hero-contour.mjs from heroes/hero-contour-atoll/params.json.
   Consumers set four custom properties on any ancestor:
     --pulsar-hero-bg     the ground          (default #0b0a16)
     --pulsar-hero-ink    the contour rings   (default #ffffff)
     --pulsar-accent      the index rings     (default #8a7df7)
     --pulsar-hero-speed  a rate; 2 is twice as fast, 0.5 half speed */
.pulsar-hero-contour-atoll {
  display: block;
  width: 100%;
  height: 100%;
  color: var(--pulsar-hero-ink, #ffffff);
}
.pulsar-hero-contour-atoll .hero-contour-atoll-ground {
  fill: var(--pulsar-hero-bg, #0b0a16);
}
.pulsar-hero-contour-atoll .hero-contour-atoll-ring {
  fill: none;
  stroke: currentColor;
}
.pulsar-hero-contour-atoll .hero-contour-atoll-accent {
  stroke: var(--pulsar-accent, #8a7df7);
}
.pulsar-hero-contour-atoll .hero-contour-atoll-ground-stop {
  stop-color: var(--pulsar-hero-bg, #0b0a16);
}
.pulsar-hero-contour-atoll .hero-contour-atoll-band {
  transform-box: view-box;
  will-change: transform;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
  animation-direction: alternate;
}
.pulsar-hero-contour-atoll .hero-contour-atoll-band-1 {
  transform-origin: 1240px 460px;
  animation-name: hero-contour-atoll-band-1;
  animation-duration: calc(25s / var(--pulsar-hero-speed, 1));
}
@keyframes hero-contour-atoll-band-1 {
  from {
    transform: translate(-30px, -16px) scale(0.98);
  }
  to {
    transform: translate(30px, 16px) scale(1.02);
  }
}
@media (prefers-reduced-motion: reduce) {
  .pulsar-hero-contour-atoll .hero-contour-atoll-band-1 {
    animation: none;
  }
}

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Atoll

The four variables

Files

The code

As a section

animation.css

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