Create a button with an electrical arc effect using HTML/CSS-PANDA

Creating an electrical arc effect purely with HTML and CSS is quite complex since CSS is primarily intended for styling and layout. Simulating an electrical arc effect would typically involve JavaScript or a canvas element for more complex animations. However, I can provide a simple example of a button with a basic “electric” effect using CSS animations:

HTML

<div class="voltage-button">
  
  <button>Button</button>
  <svg version="1.1" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" viewBox="0 0 234.6 61.3" preserveAspectRatio="none" xml:space="preserve">
 
    <filter id="glow">
      <feGaussianBlur class="blur" result="coloredBlur" stdDeviation="2"></feGaussianBlur>
      <feTurbulence type="fractalNoise" baseFrequency="0.075" numOctaves="0.3" result="turbulence"></feTurbulence>
  <feDisplacementMap in="SourceGraphic" in2="turbulence" scale="30" xChannelSelector="R" yChannelSelector="G" result="displace"></feDisplacementMap>
      <feMerge>
        <feMergeNode in="coloredBlur"></feMergeNode>
        <feMergeNode in="coloredBlur"></feMergeNode>
        <feMergeNode in="coloredBlur"></feMergeNode>
        <feMergeNode in="displace"></feMergeNode>
        <feMergeNode in="SourceGraphic"></feMergeNode>
      </feMerge>
    </filter>
    <path class="voltage line-1" d="m216.3 51.2c-3.7 0-3.7-1.1-7.3-1.1-3.7 0-3.7 6.8-7.3 6.8-3.7 0-3.7-4.6-7.3-4.6-3.7 0-3.7 3.6-7.3 3.6-3.7 0-3.7-0.9-7.3-0.9-3.7 0-3.7-2.7-7.3-2.7-3.7 0-3.7 7.8-7.3 7.8-3.7 0-3.7-4.9-7.3-4.9-3.7 0-3.7-7.8-7.3-7.8-3.7 0-3.7-1.1-7.3-1.1-3.7 0-3.7 3.1-7.3 3.1-3.7 0-3.7 10.9-7.3 10.9-3.7 0-3.7-12.5-7.3-12.5-3.7 0-3.7 4.6-7.3 4.6-3.7 0-3.7 4.5-7.3 4.5-3.7 0-3.7 3.6-7.3 3.6-3.7 0-3.7-10-7.3-10-3.7 0-3.7-0.4-7.3-0.4-3.7 0-3.7 2.3-7.3 2.3-3.7 0-3.7 7.1-7.3 7.1-3.7 0-3.7-11.2-7.3-11.2-3.7 0-3.7 3.5-7.3 3.5-3.7 0-3.7 3.6-7.3 3.6-3.7 0-3.7-2.9-7.3-2.9-3.7 0-3.7 8.4-7.3 8.4-3.7 0-3.7-14.6-7.3-14.6-3.7 0-3.7 5.8-7.3 5.8-2.2 0-3.8-0.4-5.5-1.5-1.8-1.1-1.8-2.9-2.9-4.8-1-1.8 1.9-2.7 1.9-4.8 0-3.4-2.1-3.4-2.1-6.8s-9.9-3.4-9.9-6.8 8-3.4 8-6.8c0-2.2 2.1-2.4 3.1-4.2 1.1-1.8 0.2-3.9 2-5 1.8-1 3.1-7.9 5.3-7.9 3.7 0 3.7 0.9 7.3 0.9 3.7 0 3.7 6.7 7.3 6.7 3.7 0 3.7-1.8 7.3-1.8 3.7 0 3.7-0.6 7.3-0.6 3.7 0 3.7-7.8 7.3-7.8h7.3c3.7 0 3.7 4.7 7.3 4.7 3.7 0 3.7-1.1 7.3-1.1 3.7 0 3.7 11.6 7.3 11.6 3.7 0 3.7-2.6 7.3-2.6 3.7 0 3.7-12.9 7.3-12.9 3.7 0 3.7 10.9 7.3 10.9 3.7 0 3.7 1.3 7.3 1.3 3.7 0 3.7-8.7 7.3-8.7 3.7 0 3.7 11.5 7.3 11.5 3.7 0 3.7-1.4 7.3-1.4 3.7 0 3.7-2.6 7.3-2.6 3.7 0 3.7-5.8 7.3-5.8 3.7 0 3.7-1.3 7.3-1.3 3.7 0 3.7 6.6 7.3 6.6s3.7-9.3 7.3-9.3c3.7 0 3.7 0.2 7.3 0.2 3.7 0 3.7 8.5 7.3 8.5 3.7 0 3.7 0.2 7.3 0.2 3.7 0 3.7-1.5 7.3-1.5 3.7 0 3.7 1.6 7.3 1.6s3.7-5.1 7.3-5.1c2.2 0 0.6 9.6 2.4 10.7s4.1-2 5.1-0.1c1 1.8 10.3 2.2 10.3 4.3 0 3.4-10.7 3.4-10.7 6.8s1.2 3.4 1.2 6.8 1.9 3.4 1.9 6.8c0 2.2 7.2 7.7 6.2 9.5-1.1 1.8-12.3-6.5-14.1-5.5-1.7 0.9-0.1 6.2-2.2 6.2z" fill="transparent" stroke="#fff"></path>
    <path class="voltage line-2" d="m216.3 52.1c-3 0-3-0.5-6-0.5s-3 3-6 3-3-2-6-2-3 1.6-6 1.6-3-0.4-6-0.4-3-1.2-6-1.2-3 3.4-6 3.4-3-2.2-6-2.2-3-3.4-6-3.4-3-0.5-6-0.5-3 1.4-6 1.4-3 4.8-6 4.8-3-5.5-6-5.5-3 2-6 2-3 2-6 2-3 1.6-6 1.6-3-4.4-6-4.4-3-0.2-6-0.2-3 1-6 1-3 3.1-6 3.1-3-4.9-6-4.9-3 1.5-6 1.5-3 1.6-6 1.6-3-1.3-6-1.3-3 3.7-6 3.7-3-6.4-6-6.4-3 2.5-6 2.5h-6c-3 0-3-0.6-6-0.6s-3-1.4-6-1.4-3 0.9-6 0.9-3 4.3-6 4.3-3-3.5-6-3.5c-2.2 0-3.4-1.3-5.2-2.3-1.8-1.1-3.6-1.5-4.6-3.3s-4.4-3.5-4.4-5.7c0-3.4 0.4-3.4 0.4-6.8s2.9-3.4 2.9-6.8-0.8-3.4-0.8-6.8c0-2.2 0.3-4.2 1.3-5.9 1.1-1.8 0.8-6.2 2.6-7.3 1.8-1 5.5-2 7.7-2 3 0 3 2 6 2s3-0.5 6-0.5 3 5.1 6 5.1 3-1.1 6-1.1 3-5.6 6-5.6 3 4.8 6 4.8 3 0.6 6 0.6 3-3.8 6-3.8 3 5.1 6 5.1 3-0.6 6-0.6 3-1.2 6-1.2 3-2.6 6-2.6 3-0.6 6-0.6 3 2.9 6 2.9 3-4.1 6-4.1 3 0.1 6 0.1 3 3.7 6 3.7 3 0.1 6 0.1 3-0.6 6-0.6 3 0.7 6 0.7 3-2.2 6-2.2 3 4.4 6 4.4 3-1.7 6-1.7 3-4 6-4 3 4.7 6 4.7 3-0.5 6-0.5 3-0.8 6-0.8 3-3.8 6-3.8 3 6.3 6 6.3 3-4.8 6-4.8 3 1.9 6 1.9 3-1.9 6-1.9 3 1.3 6 1.3c2.2 0 5-0.5 6.7 0.5 1.8 1.1 2.4 4 3.5 5.8 1 1.8 0.3 3.7 0.3 5.9 0 3.4 3.4 3.4 3.4 6.8s-3.3 3.4-3.3 6.8 4 3.4 4 6.8c0 2.2-6 2.7-7 4.4-1.1 1.8 1.1 6.7-0.7 7.7-1.6 0.8-4.7-1.1-6.8-1.1z" fill="transparent" stroke="#fff"></path>
  </svg>
  <div class="dots">
    <div class="dot dot-1"></div>
    <div class="dot dot-2"></div>
    <div class="dot dot-3"></div>
    <div class="dot dot-4"></div>
    <div class="dot dot-5"></div>
  </div>
</div>

CSS

.voltage-button {
  position: relative;
}

.voltage-button button {
  color: white;
  background: #0D1127;
  padding: 1rem 3rem 1rem 3rem;
  border-radius: 5rem;
  border: 5px solid #5978F3;
  font-size: 1.2rem;
  line-height: 1em;
  letter-spacing: 0.075em;
  transition: background 0.3s;
}

.voltage-button button:hover {
  cursor: pointer;
  background: #0F1C53;
}

.voltage-button button:hover + svg, .voltage-button button:hover + svg + .dots {
  opacity: 1;
}

.voltage-button svg {
  display: block;
  position: absolute;
  top: -0.75em;
  left: -0.25em;
  width: calc(100% + 0.5em);
  height: calc(100% + 1.5em);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s;
  transition-delay: 0.1s;
}

.voltage-button svg path {
  stroke-dasharray: 100;
  filter: url("#glow");
}

.voltage-button svg path.line-1 {
  stroke: #f6de8d;
  stroke-dashoffset: 0;
  animation: spark-1 3s linear infinite;
}

.voltage-button svg path.line-2 {
  stroke: #6bfeff;
  stroke-dashoffset: 500;
  animation: spark-2 3s linear infinite;
}

.voltage-button .dots {
  opacity: 0;
  transition: opacity 0.3s;
  transition-delay: 0.4s;
}

.voltage-button .dots .dot {
  width: 1rem;
  height: 1rem;
  background: white;
  border-radius: 100%;
  position: absolute;
  opacity: 0;
}

.voltage-button .dots .dot-1 {
  top: 0;
  left: 20%;
  animation: fly-up 3s linear infinite;
}

.voltage-button .dots .dot-2 {
  top: 0;
  left: 55%;
  animation: fly-up 3s linear infinite;
  animation-delay: 0.5s;
}

.voltage-button .dots .dot-3 {
  top: 0;
  left: 80%;
  animation: fly-up 3s linear infinite;
  animation-delay: 1s;
}

.voltage-button .dots .dot-4 {
  bottom: 0;
  left: 30%;
  animation: fly-down 3s linear infinite;
  animation-delay: 2.5s;
}

.voltage-button .dots .dot-5 {
  bottom: 0;
  left: 65%;
  animation: fly-down 3s linear infinite;
  animation-delay: 1.5s;
}

@keyframes spark-1 {
  to {
    stroke-dashoffset: -1000;
  }
}

@keyframes spark-2 {
  to {
    stroke-dashoffset: -500;
  }
}

@keyframes fly-up {
  0% {
    opacity: 0;
    transform: translateY(0) scale(0.2);
  }

  5% {
    opacity: 1;
    transform: translateY(-1.5rem) scale(0.4);
  }

  10%, 100% {
    opacity: 0;
    transform: translateY(-3rem) scale(0.2);
  }
}

@keyframes fly-down {
  0% {
    opacity: 0;
    transform: translateY(0) scale(0.2);
  }

  5% {
    opacity: 1;
    transform: translateY(1.5rem) scale(0.4);
  }

  10%, 100% {
    opacity: 0;
    transform: translateY(3rem) scale(0.2);
  }
}

HTML & CSS

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    .voltage-button {
      position: relative;
    }

    .voltage-button button {
      color: white;
      background: #0D1127;
      padding: 1rem 3rem 1rem 3rem;
      border-radius: 5rem;
      border: 5px solid #5978F3;
      font-size: 1.2rem;
      line-height: 1em;
      letter-spacing: 0.075em;
      transition: background 0.3s;
    }

    .voltage-button button:hover {
      cursor: pointer;
      background: #0F1C53;
    }

    .voltage-button button:hover+svg,
    .voltage-button button:hover+svg+.dots {
      opacity: 1;
    }

    .voltage-button svg {
      display: block;
      position: absolute;
      top: -0.75em;
      left: -0.25em;
      width: calc(100% + 0.5em);
      height: calc(100% + 1.5em);
      pointer-events: none;
      opacity: 0;
      transition: opacity 0.4s;
      transition-delay: 0.1s;
    }

    .voltage-button svg path {
      stroke-dasharray: 100;
      filter: url("#glow");
    }

    .voltage-button svg path.line-1 {
      stroke: #f6de8d;
      stroke-dashoffset: 0;
      animation: spark-1 3s linear infinite;
    }

    .voltage-button svg path.line-2 {
      stroke: #6bfeff;
      stroke-dashoffset: 500;
      animation: spark-2 3s linear infinite;
    }

    .voltage-button .dots {
      opacity: 0;
      transition: opacity 0.3s;
      transition-delay: 0.4s;
    }

    .voltage-button .dots .dot {
      width: 1rem;
      height: 1rem;
      background: white;
      border-radius: 100%;
      position: absolute;
      opacity: 0;
    }

    .voltage-button .dots .dot-1 {
      top: 0;
      left: 20%;
      animation: fly-up 3s linear infinite;
    }

    .voltage-button .dots .dot-2 {
      top: 0;
      left: 55%;
      animation: fly-up 3s linear infinite;
      animation-delay: 0.5s;
    }

    .voltage-button .dots .dot-3 {
      top: 0;
      left: 80%;
      animation: fly-up 3s linear infinite;
      animation-delay: 1s;
    }

    .voltage-button .dots .dot-4 {
      bottom: 0;
      left: 30%;
      animation: fly-down 3s linear infinite;
      animation-delay: 2.5s;
    }

    .voltage-button .dots .dot-5 {
      bottom: 0;
      left: 65%;
      animation: fly-down 3s linear infinite;
      animation-delay: 1.5s;
    }

    @keyframes spark-1 {
      to {
        stroke-dashoffset: -1000;
      }
    }

    @keyframes spark-2 {
      to {
        stroke-dashoffset: -500;
      }
    }

    @keyframes fly-up {
      0% {
        opacity: 0;
        transform: translateY(0) scale(0.2);
      }

      5% {
        opacity: 1;
        transform: translateY(-1.5rem) scale(0.4);
      }

      10%,
      100% {
        opacity: 0;
        transform: translateY(-3rem) scale(0.2);
      }
    }

    @keyframes fly-down {
      0% {
        opacity: 0;
        transform: translateY(0) scale(0.2);
      }

      5% {
        opacity: 1;
        transform: translateY(1.5rem) scale(0.4);
      }

      10%,
      100% {
        opacity: 0;
        transform: translateY(3rem) scale(0.2);
      }
    }
  </style>
</head>

<body>
  <div class="voltage-button">

    <button>Button</button>
    <svg version="1.1" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" viewBox="0 0 234.6 61.3"
      preserveAspectRatio="none" xml:space="preserve">

      <filter id="glow">
        <feGaussianBlur class="blur" result="coloredBlur" stdDeviation="2"></feGaussianBlur>
        <feTurbulence type="fractalNoise" baseFrequency="0.075" numOctaves="0.3" result="turbulence"></feTurbulence>
        <feDisplacementMap in="SourceGraphic" in2="turbulence" scale="30" xChannelSelector="R" yChannelSelector="G"
          result="displace"></feDisplacementMap>
        <feMerge>
          <feMergeNode in="coloredBlur"></feMergeNode>
          <feMergeNode in="coloredBlur"></feMergeNode>
          <feMergeNode in="coloredBlur"></feMergeNode>
          <feMergeNode in="displace"></feMergeNode>
          <feMergeNode in="SourceGraphic"></feMergeNode>
        </feMerge>
      </filter>
      <path class="voltage line-1"
        d="m216.3 51.2c-3.7 0-3.7-1.1-7.3-1.1-3.7 0-3.7 6.8-7.3 6.8-3.7 0-3.7-4.6-7.3-4.6-3.7 0-3.7 3.6-7.3 3.6-3.7 0-3.7-0.9-7.3-0.9-3.7 0-3.7-2.7-7.3-2.7-3.7 0-3.7 7.8-7.3 7.8-3.7 0-3.7-4.9-7.3-4.9-3.7 0-3.7-7.8-7.3-7.8-3.7 0-3.7-1.1-7.3-1.1-3.7 0-3.7 3.1-7.3 3.1-3.7 0-3.7 10.9-7.3 10.9-3.7 0-3.7-12.5-7.3-12.5-3.7 0-3.7 4.6-7.3 4.6-3.7 0-3.7 4.5-7.3 4.5-3.7 0-3.7 3.6-7.3 3.6-3.7 0-3.7-10-7.3-10-3.7 0-3.7-0.4-7.3-0.4-3.7 0-3.7 2.3-7.3 2.3-3.7 0-3.7 7.1-7.3 7.1-3.7 0-3.7-11.2-7.3-11.2-3.7 0-3.7 3.5-7.3 3.5-3.7 0-3.7 3.6-7.3 3.6-3.7 0-3.7-2.9-7.3-2.9-3.7 0-3.7 8.4-7.3 8.4-3.7 0-3.7-14.6-7.3-14.6-3.7 0-3.7 5.8-7.3 5.8-2.2 0-3.8-0.4-5.5-1.5-1.8-1.1-1.8-2.9-2.9-4.8-1-1.8 1.9-2.7 1.9-4.8 0-3.4-2.1-3.4-2.1-6.8s-9.9-3.4-9.9-6.8 8-3.4 8-6.8c0-2.2 2.1-2.4 3.1-4.2 1.1-1.8 0.2-3.9 2-5 1.8-1 3.1-7.9 5.3-7.9 3.7 0 3.7 0.9 7.3 0.9 3.7 0 3.7 6.7 7.3 6.7 3.7 0 3.7-1.8 7.3-1.8 3.7 0 3.7-0.6 7.3-0.6 3.7 0 3.7-7.8 7.3-7.8h7.3c3.7 0 3.7 4.7 7.3 4.7 3.7 0 3.7-1.1 7.3-1.1 3.7 0 3.7 11.6 7.3 11.6 3.7 0 3.7-2.6 7.3-2.6 3.7 0 3.7-12.9 7.3-12.9 3.7 0 3.7 10.9 7.3 10.9 3.7 0 3.7 1.3 7.3 1.3 3.7 0 3.7-8.7 7.3-8.7 3.7 0 3.7 11.5 7.3 11.5 3.7 0 3.7-1.4 7.3-1.4 3.7 0 3.7-2.6 7.3-2.6 3.7 0 3.7-5.8 7.3-5.8 3.7 0 3.7-1.3 7.3-1.3 3.7 0 3.7 6.6 7.3 6.6s3.7-9.3 7.3-9.3c3.7 0 3.7 0.2 7.3 0.2 3.7 0 3.7 8.5 7.3 8.5 3.7 0 3.7 0.2 7.3 0.2 3.7 0 3.7-1.5 7.3-1.5 3.7 0 3.7 1.6 7.3 1.6s3.7-5.1 7.3-5.1c2.2 0 0.6 9.6 2.4 10.7s4.1-2 5.1-0.1c1 1.8 10.3 2.2 10.3 4.3 0 3.4-10.7 3.4-10.7 6.8s1.2 3.4 1.2 6.8 1.9 3.4 1.9 6.8c0 2.2 7.2 7.7 6.2 9.5-1.1 1.8-12.3-6.5-14.1-5.5-1.7 0.9-0.1 6.2-2.2 6.2z"
        fill="transparent" stroke="#fff"></path>
      <path class="voltage line-2"
        d="m216.3 52.1c-3 0-3-0.5-6-0.5s-3 3-6 3-3-2-6-2-3 1.6-6 1.6-3-0.4-6-0.4-3-1.2-6-1.2-3 3.4-6 3.4-3-2.2-6-2.2-3-3.4-6-3.4-3-0.5-6-0.5-3 1.4-6 1.4-3 4.8-6 4.8-3-5.5-6-5.5-3 2-6 2-3 2-6 2-3 1.6-6 1.6-3-4.4-6-4.4-3-0.2-6-0.2-3 1-6 1-3 3.1-6 3.1-3-4.9-6-4.9-3 1.5-6 1.5-3 1.6-6 1.6-3-1.3-6-1.3-3 3.7-6 3.7-3-6.4-6-6.4-3 2.5-6 2.5h-6c-3 0-3-0.6-6-0.6s-3-1.4-6-1.4-3 0.9-6 0.9-3 4.3-6 4.3-3-3.5-6-3.5c-2.2 0-3.4-1.3-5.2-2.3-1.8-1.1-3.6-1.5-4.6-3.3s-4.4-3.5-4.4-5.7c0-3.4 0.4-3.4 0.4-6.8s2.9-3.4 2.9-6.8-0.8-3.4-0.8-6.8c0-2.2 0.3-4.2 1.3-5.9 1.1-1.8 0.8-6.2 2.6-7.3 1.8-1 5.5-2 7.7-2 3 0 3 2 6 2s3-0.5 6-0.5 3 5.1 6 5.1 3-1.1 6-1.1 3-5.6 6-5.6 3 4.8 6 4.8 3 0.6 6 0.6 3-3.8 6-3.8 3 5.1 6 5.1 3-0.6 6-0.6 3-1.2 6-1.2 3-2.6 6-2.6 3-0.6 6-0.6 3 2.9 6 2.9 3-4.1 6-4.1 3 0.1 6 0.1 3 3.7 6 3.7 3 0.1 6 0.1 3-0.6 6-0.6 3 0.7 6 0.7 3-2.2 6-2.2 3 4.4 6 4.4 3-1.7 6-1.7 3-4 6-4 3 4.7 6 4.7 3-0.5 6-0.5 3-0.8 6-0.8 3-3.8 6-3.8 3 6.3 6 6.3 3-4.8 6-4.8 3 1.9 6 1.9 3-1.9 6-1.9 3 1.3 6 1.3c2.2 0 5-0.5 6.7 0.5 1.8 1.1 2.4 4 3.5 5.8 1 1.8 0.3 3.7 0.3 5.9 0 3.4 3.4 3.4 3.4 6.8s-3.3 3.4-3.3 6.8 4 3.4 4 6.8c0 2.2-6 2.7-7 4.4-1.1 1.8 1.1 6.7-0.7 7.7-1.6 0.8-4.7-1.1-6.8-1.1z"
        fill="transparent" stroke="#fff"></path>
    </svg>
    <div class="dots">
      <div class="dot dot-1"></div>
      <div class="dot dot-2"></div>
      <div class="dot dot-3"></div>
      <div class="dot dot-4"></div>
      <div class="dot dot-5"></div>
    </div>
  </div>
</body>

</html>

THE END