Create a colorful button using HTML/CSS-PANDA

Creating a colorful button can be achieved through HTML and CSS. Below is a simple example where this button will display different colors in different states (such as hovering, pressing, etc.).

Below is the specific code:

HTML

<button class="uiverse">
    <div class="wrapper">
        <span>UIVERSE</span>
        <div class="circle circle-12"></div>
        <div class="circle circle-11"></div>
        <div class="circle circle-10"></div>
        <div class="circle circle-9"></div>
        <div class="circle circle-8"></div>
        <div class="circle circle-7"></div>
        <div class="circle circle-6"></div>
        <div class="circle circle-5"></div>
        <div class="circle circle-4"></div>
        <div class="circle circle-3"></div>
        <div class="circle circle-2"></div>
        <div class="circle circle-1"></div>
    </div>
</button>

CSS

.uiverse {
  --duration: 7s;
  --easing: linear;
  --c-color-1: rgba(255, 163, 26, .7);
  --c-color-2: #1a23ff;
  --c-color-3: #e21bda;
  --c-color-4: rgba(255, 232, 26, .7);
  --c-shadow: rgba(255, 223, 87, .5);
  --c-shadow-inset-top: rgba(255, 223, 52, .9);
  --c-shadow-inset-bottom: rgba(255, 250, 215, .8);
  --c-radial-inner: #ffd215;
  --c-radial-outer: #fff172;
  --c-color: #fff;
  -webkit-tap-highlight-color: transparent;
  -webkit-appearance: none;
  outline: none;
  position: relative;
  cursor: pointer;
  border: none;
  display: table;
  border-radius: 24px;
  padding: 0;
  margin: 0;
  text-align: center;
  font-weight: 600;
  font-size: 16px;
  letter-spacing: 0.02em;
  line-height: 1.5;
  color: var(--c-color);
  background: radial-gradient(circle, var(--c-radial-inner), var(--c-radial-outer) 80%);
  box-shadow: 0 0 14px var(--c-shadow);
}

.uiverse:before {
  content: '';
  pointer-events: none;
  position: absolute;
  z-index: 3;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  border-radius: 24px;
  box-shadow: inset 0 3px 12px var(--c-shadow-inset-top), inset 0 -3px 4px var(--c-shadow-inset-bottom);
}

.uiverse .wrapper {
  -webkit-mask-image: -webkit-radial-gradient(white, black);
  overflow: hidden;
  border-radius: 24px;
  min-width: 132px;
  padding: 12px 0;
}

.uiverse .wrapper span {
  display: inline-block;
  position: relative;
  z-index: 1;
}

.uiverse .wrapper .circle {
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  filter: blur(var(--blur, 8px));
  background: var(--background, transparent);
  transform: translate(var(--x, 0), var(--y, 0)) translateZ(0);
  animation: var(--animation, none) var(--duration) var(--easing) infinite;
}

.uiverse .wrapper .circle.circle-1, .uiverse .wrapper .circle.circle-9, .uiverse .wrapper .circle.circle-10 {
  --background: var(--c-color-4);
}

.uiverse .wrapper .circle.circle-3, .uiverse .wrapper .circle.circle-4 {
  --background: var(--c-color-2);
  --blur: 14px;
}

.uiverse .wrapper .circle.circle-5, .uiverse .wrapper .circle.circle-6 {
  --background: var(--c-color-3);
  --blur: 16px;
}

.uiverse .wrapper .circle.circle-2, .uiverse .wrapper .circle.circle-7, .uiverse .wrapper .circle.circle-8, .uiverse .wrapper .circle.circle-11, .uiverse .wrapper .circle.circle-12 {
  --background: var(--c-color-1);
  --blur: 12px;
}

.uiverse .wrapper .circle.circle-1 {
  --x: 0;
  --y: -40px;
  --animation: circle-1;
}

.uiverse .wrapper .circle.circle-2 {
  --x: 92px;
  --y: 8px;
  --animation: circle-2;
}

.uiverse .wrapper .circle.circle-3 {
  --x: -12px;
  --y: -12px;
  --animation: circle-3;
}

.uiverse .wrapper .circle.circle-4 {
  --x: 80px;
  --y: -12px;
  --animation: circle-4;
}

.uiverse .wrapper .circle.circle-5 {
  --x: 12px;
  --y: -4px;
  --animation: circle-5;
}

.uiverse .wrapper .circle.circle-6 {
  --x: 56px;
  --y: 16px;
  --animation: circle-6;
}

.uiverse .wrapper .circle.circle-7 {
  --x: 8px;
  --y: 28px;
  --animation: circle-7;
}

.uiverse .wrapper .circle.circle-8 {
  --x: 28px;
  --y: -4px;
  --animation: circle-8;
}

.uiverse .wrapper .circle.circle-9 {
  --x: 20px;
  --y: -12px;
  --animation: circle-9;
}

.uiverse .wrapper .circle.circle-10 {
  --x: 64px;
  --y: 16px;
  --animation: circle-10;
}

.uiverse .wrapper .circle.circle-11 {
  --x: 4px;
  --y: 4px;
  --animation: circle-11;
}

.uiverse .wrapper .circle.circle-12 {
  --blur: 14px;
  --x: 52px;
  --y: 4px;
  --animation: circle-12;
}

@keyframes circle-1 {
  33% {
    transform: translate(0px, 16px) translateZ(0);
  }

  66% {
    transform: translate(12px, 64px) translateZ(0);
  }
}

@keyframes circle-2 {
  33% {
    transform: translate(80px, -10px) translateZ(0);
  }

  66% {
    transform: translate(72px, -48px) translateZ(0);
  }
}

@keyframes circle-3 {
  33% {
    transform: translate(20px, 12px) translateZ(0);
  }

  66% {
    transform: translate(12px, 4px) translateZ(0);
  }
}

@keyframes circle-4 {
  33% {
    transform: translate(76px, -12px) translateZ(0);
  }

  66% {
    transform: translate(112px, -8px) translateZ(0);
  }
}

@keyframes circle-5 {
  33% {
    transform: translate(84px, 28px) translateZ(0);
  }

  66% {
    transform: translate(40px, -32px) translateZ(0);
  }
}

@keyframes circle-6 {
  33% {
    transform: translate(28px, -16px) translateZ(0);
  }

  66% {
    transform: translate(76px, -56px) translateZ(0);
  }
}

@keyframes circle-7 {
  33% {
    transform: translate(8px, 28px) translateZ(0);
  }

  66% {
    transform: translate(20px, -60px) translateZ(0);
  }
}

@keyframes circle-8 {
  33% {
    transform: translate(32px, -4px) translateZ(0);
  }

  66% {
    transform: translate(56px, -20px) translateZ(0);
  }
}

@keyframes circle-9 {
  33% {
    transform: translate(20px, -12px) translateZ(0);
  }

  66% {
    transform: translate(80px, -8px) translateZ(0);
  }
}

@keyframes circle-10 {
  33% {
    transform: translate(68px, 20px) translateZ(0);
  }

  66% {
    transform: translate(100px, 28px) translateZ(0);
  }
}

@keyframes circle-11 {
  33% {
    transform: translate(4px, 4px) translateZ(0);
  }

  66% {
    transform: translate(68px, 20px) translateZ(0);
  }
}

@keyframes circle-12 {
  33% {
    transform: translate(56px, 0px) translateZ(0);
  }

  66% {
    transform: translate(60px, -32px) translateZ(0);
  }
}

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>
    .uiverse {
      --duration: 7s;
      --easing: linear;
      --c-color-1: rgba(255, 163, 26, .7);
      --c-color-2: #1a23ff;
      --c-color-3: #e21bda;
      --c-color-4: rgba(255, 232, 26, .7);
      --c-shadow: rgba(255, 223, 87, .5);
      --c-shadow-inset-top: rgba(255, 223, 52, .9);
      --c-shadow-inset-bottom: rgba(255, 250, 215, .8);
      --c-radial-inner: #ffd215;
      --c-radial-outer: #fff172;
      --c-color: #fff;
      -webkit-tap-highlight-color: transparent;
      -webkit-appearance: none;
      outline: none;
      position: relative;
      cursor: pointer;
      border: none;
      display: table;
      border-radius: 24px;
      padding: 0;
      margin: 0;
      text-align: center;
      font-weight: 600;
      font-size: 16px;
      letter-spacing: 0.02em;
      line-height: 1.5;
      color: var(--c-color);
      background: radial-gradient(circle, var(--c-radial-inner), var(--c-radial-outer) 80%);
      box-shadow: 0 0 14px var(--c-shadow);
    }

    .uiverse:before {
      content: '';
      pointer-events: none;
      position: absolute;
      z-index: 3;
      left: 0;
      top: 0;
      right: 0;
      bottom: 0;
      border-radius: 24px;
      box-shadow: inset 0 3px 12px var(--c-shadow-inset-top), inset 0 -3px 4px var(--c-shadow-inset-bottom);
    }

    .uiverse .wrapper {
      -webkit-mask-image: -webkit-radial-gradient(white, black);
      overflow: hidden;
      border-radius: 24px;
      min-width: 132px;
      padding: 12px 0;
    }

    .uiverse .wrapper span {
      display: inline-block;
      position: relative;
      z-index: 1;
    }

    .uiverse .wrapper .circle {
      position: absolute;
      left: 0;
      top: 0;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      filter: blur(var(--blur, 8px));
      background: var(--background, transparent);
      transform: translate(var(--x, 0), var(--y, 0)) translateZ(0);
      animation: var(--animation, none) var(--duration) var(--easing) infinite;
    }

    .uiverse .wrapper .circle.circle-1,
    .uiverse .wrapper .circle.circle-9,
    .uiverse .wrapper .circle.circle-10 {
      --background: var(--c-color-4);
    }

    .uiverse .wrapper .circle.circle-3,
    .uiverse .wrapper .circle.circle-4 {
      --background: var(--c-color-2);
      --blur: 14px;
    }

    .uiverse .wrapper .circle.circle-5,
    .uiverse .wrapper .circle.circle-6 {
      --background: var(--c-color-3);
      --blur: 16px;
    }

    .uiverse .wrapper .circle.circle-2,
    .uiverse .wrapper .circle.circle-7,
    .uiverse .wrapper .circle.circle-8,
    .uiverse .wrapper .circle.circle-11,
    .uiverse .wrapper .circle.circle-12 {
      --background: var(--c-color-1);
      --blur: 12px;
    }

    .uiverse .wrapper .circle.circle-1 {
      --x: 0;
      --y: -40px;
      --animation: circle-1;
    }

    .uiverse .wrapper .circle.circle-2 {
      --x: 92px;
      --y: 8px;
      --animation: circle-2;
    }

    .uiverse .wrapper .circle.circle-3 {
      --x: -12px;
      --y: -12px;
      --animation: circle-3;
    }

    .uiverse .wrapper .circle.circle-4 {
      --x: 80px;
      --y: -12px;
      --animation: circle-4;
    }

    .uiverse .wrapper .circle.circle-5 {
      --x: 12px;
      --y: -4px;
      --animation: circle-5;
    }

    .uiverse .wrapper .circle.circle-6 {
      --x: 56px;
      --y: 16px;
      --animation: circle-6;
    }

    .uiverse .wrapper .circle.circle-7 {
      --x: 8px;
      --y: 28px;
      --animation: circle-7;
    }

    .uiverse .wrapper .circle.circle-8 {
      --x: 28px;
      --y: -4px;
      --animation: circle-8;
    }

    .uiverse .wrapper .circle.circle-9 {
      --x: 20px;
      --y: -12px;
      --animation: circle-9;
    }

    .uiverse .wrapper .circle.circle-10 {
      --x: 64px;
      --y: 16px;
      --animation: circle-10;
    }

    .uiverse .wrapper .circle.circle-11 {
      --x: 4px;
      --y: 4px;
      --animation: circle-11;
    }

    .uiverse .wrapper .circle.circle-12 {
      --blur: 14px;
      --x: 52px;
      --y: 4px;
      --animation: circle-12;
    }

    @keyframes circle-1 {
      33% {
        transform: translate(0px, 16px) translateZ(0);
      }

      66% {
        transform: translate(12px, 64px) translateZ(0);
      }
    }

    @keyframes circle-2 {
      33% {
        transform: translate(80px, -10px) translateZ(0);
      }

      66% {
        transform: translate(72px, -48px) translateZ(0);
      }
    }

    @keyframes circle-3 {
      33% {
        transform: translate(20px, 12px) translateZ(0);
      }

      66% {
        transform: translate(12px, 4px) translateZ(0);
      }
    }

    @keyframes circle-4 {
      33% {
        transform: translate(76px, -12px) translateZ(0);
      }

      66% {
        transform: translate(112px, -8px) translateZ(0);
      }
    }

    @keyframes circle-5 {
      33% {
        transform: translate(84px, 28px) translateZ(0);
      }

      66% {
        transform: translate(40px, -32px) translateZ(0);
      }
    }

    @keyframes circle-6 {
      33% {
        transform: translate(28px, -16px) translateZ(0);
      }

      66% {
        transform: translate(76px, -56px) translateZ(0);
      }
    }

    @keyframes circle-7 {
      33% {
        transform: translate(8px, 28px) translateZ(0);
      }

      66% {
        transform: translate(20px, -60px) translateZ(0);
      }
    }

    @keyframes circle-8 {
      33% {
        transform: translate(32px, -4px) translateZ(0);
      }

      66% {
        transform: translate(56px, -20px) translateZ(0);
      }
    }

    @keyframes circle-9 {
      33% {
        transform: translate(20px, -12px) translateZ(0);
      }

      66% {
        transform: translate(80px, -8px) translateZ(0);
      }
    }

    @keyframes circle-10 {
      33% {
        transform: translate(68px, 20px) translateZ(0);
      }

      66% {
        transform: translate(100px, 28px) translateZ(0);
      }
    }

    @keyframes circle-11 {
      33% {
        transform: translate(4px, 4px) translateZ(0);
      }

      66% {
        transform: translate(68px, 20px) translateZ(0);
      }
    }

    @keyframes circle-12 {
      33% {
        transform: translate(56px, 0px) translateZ(0);
      }

      66% {
        transform: translate(60px, -32px) translateZ(0);
      }
    }
  </style>
</head>

<body>
  <button class="uiverse">
    <div class="wrapper">
      <span>UIVERSE</span>
      <div class="circle circle-12"></div>
      <div class="circle circle-11"></div>
      <div class="circle circle-10"></div>
      <div class="circle circle-9"></div>
      <div class="circle circle-8"></div>
      <div class="circle circle-7"></div>
      <div class="circle circle-6"></div>
      <div class="circle circle-5"></div>
      <div class="circle circle-4"></div>
      <div class="circle circle-3"></div>
      <div class="circle circle-2"></div>
      <div class="circle circle-1"></div>
    </div>
  </button>
</body>

</html>

THE END