Helix Loader

abhishek001
Jan 25, 2026 4
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 <div class="scene">
    <div class="dna-helix"></div>
  </div>
  <p class="loader-text">Analyzing Data...</p>
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #000;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  font-family: 'Courier New', monospace;
  color: #0ff;
  overflow: hidden;
}

.loader-text {
  position: absolute;
  bottom: 30px;
  text-align: center;
  width: 100%;
  letter-spacing: 3px;
  opacity: 0.7;
  animation: flicker 1.5s infinite alternate;
}

/* ===== 3D Scene ===== */
.scene {
  perspective: 1000px;
  width: 200px;
  height: 300px;
}

.dna-helix {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  animation: rotateHelix 8s linear infinite;
}

/* ===== Build the helix using pseudo-elements ===== */
.dna-helix::before,
.dna-helix::after {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  width: 12px;
  height: 12px;
  background: #0ff;
  border-radius: 50%;
  transform-style: preserve-3d;
  box-shadow: 0 0 12px #0ff, 0 0 24px rgba(0, 255, 255, 0.6);
}

/* Left strand */
.dna-helix::before {
  animation: orbitLeft 8s linear infinite;
}

/* Right strand */
.dna-helix::after {
  animation: orbitRight 8s linear infinite;
}

/* ===== Keyframes ===== */
@keyframes rotateHelix {
  from { transform: rotateY(0deg); }
  to   { transform: rotateY(360deg); }
}

@keyframes orbitLeft {
  0%   { transform: translateX(-40px) translateY(0px) translateZ(0px); }
  25%  { transform: translateX(-28px) translateY(75px) translateZ(28px); }
  50%  { transform: translateX(0px) translateY(150px) translateZ(40px); }
  75%  { transform: translateX(28px) translateY(225px) translateZ(28px); }
  100% { transform: translateX(40px) translateY(300px) translateZ(0px); }
}

@keyframes orbitRight {
  0%   { transform: translateX(40px) translateY(0px) translateZ(0px); }
  25%  { transform: translateX(28px) translateY(75px) translateZ(-28px); }
  50%  { transform: translateX(0px) translateY(150px) translateZ(-40px); }
  75%  { transform: translateX(-28px) translateY(225px) translateZ(-28px); }
  100% { transform: translateX(-40px) translateY(300px) translateZ(0px); }
}

@keyframes flicker {
  0%, 19%, 21%, 23%, 25%, 59%, 61%, 63%, 65%, 100% {
    opacity: 0.7;
  }
  20%, 24%, 60%, 64% {
    opacity: 1;
  }
}
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Helix Loader

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