Sunny Beach Day Vibes (Neon with Waves)

index.html

<div style="--i:0;" class="blur root">
  <div style="--i:1;">
    <div style="--i:2;">
      <div style="--i:3;">
        <div style="--i:4;">
          <div style="--i:5;"></div>
        </div>
      </div>
    </div>
  </div>
</div>
<div style="--i:0;" class="root">
  <div style="--i:1;">
    <div style="--i:2;">
      <div style="--i:3;">
        <div style="--i:4;">
          <div style="--i:5;"></div>
        </div>
      </div>
    </div>
  </div>
</div>
<div style="--i:0;" class="tube root">
  <div style="--i:1;">
    <div style="--i:2;">
      <div style="--i:3;">
        <div style="--i:4;">
          <div style="--i:5;"></div>
        </div>
      </div>
    </div>
  </div>
</div>
<p><span style="--i:0;"></span><span style="--i:1;"></span><span style="--i:2;"></span><span style="--i:3;"></span><span style="--i:4;"></p>

style.css

div {
  --h: 18;
  border: 3vmin solid hsl(var(--h), 100%, var(--l, 50%));
  border-left-color: transparent;
  border-bottom-color: transparent;
  border-radius: 50%;

  margin: 2.5vmin;
  min-height: 15vmin;
  min-width: 15vmin;
  max-width: 100vmin;
  --prefix-transform: rotateZ(-0.125turn);

  transform: var(--prefix-transform);
}
div,
p {
  grid-column: 1;
  grid-row: 1;
}

div > div {
  --prefix-transform: ;
  --h: 27;
}
div > div > div {
  --h: 36;
}
div > div > div > div {
  --h: 45;
}
div > div > div > div > div {
  --h: 54;
}
div > div > div > div > div > div {
  --h: 63;
}

.blur {
  filter: blur(6px);
}
.tube,
.tube div {
  border-style: solid;
  --l: 95%;
  border-width: 0.5vmin;
  margin: 5.05vmin;
  min-height: 12.75vmin;
  min-width: 12.75vmin;
}
.tube {
  filter: blur(2px);
}
p {
  width: 100vmin;
  height: 100vmin;
  padding-top: 52.5vmin;
  display: flex;
  flex-direction: column;
  align-items: center;
}
p span {
  margin: 0 auto 2.75vmin;
  display: block;
  height: 2.75vmin;
  width: 72%;
  color: hsl(173, 100%, 50%);
  background: linear-gradient(
    to bottom,
    currentColor,
    currentColor,
    currentColor,
    hsl(173, 100%, 76%),
    currentColor,
    currentColor,
    currentColor
  );
  border-left: 1vmin solid currentColor;
  border-right: 1vmin solid currentColor;
  border-radius: 1.5vmin;

  filter: drop-shadow(0px 0px 5px currentColor);
  animation: wavy 6000ms calc(var(--i) * -4400ms - 3000ms) infinite alternate
    ease-in-out;
}
span + span {
  width: 71%;
}
span + span {
  width: 67%;
}
span + span + span {
  width: 60%;
}
span + span + span + span {
  width: 50%;
}
span + span + span + span + span {
  width: 35%;
}

@keyframes wavy {
  0% {
    transform: translateX(-6%);
  }
  100% {
    transform: translateX(6%);
  }
}

body {
  height: 100vh;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
  place-items: center;
  perspective: 100vmin;
  overflow: hidden;
  background: #16162c;
}

* {
  margin: 0;
  box-sizing: border-box;
  position: relative;
}

sunny-beach-day-vibes-neon-with-waves.markdown

Sunny Beach Day Vibes (Neon with Waves)

A Pen by Dan Wilson on CodePen.

License.