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CSS

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HTML 

              
                <graph>
  <css-doodle click-to-update>
    :doodle {
      @grid: 16x10 / 80vmin 80vmin;
      @max-size: 800px 800px;
      overflow: hidden;
      background: linear-gradient(#1B0F0E, #521E18);
      border-radius: 4px;
    }
    background-image: radial-gradient(circle at @r(45, 55)% 100%, #fff 0%, #fff @r(5, 10)%, #F7E076 20%, #ffc88a 30%, #ebd15b 40%, #c57010 80%);
    border-radius: @r(0, 4)px;

    --rotate: @r(±15)deg;
    --translate-x: @r(±20)%;
    --translate-y: @r(±20)%;
    --scale: @p(0.1, 0.2, 0.3, 0.5, 0.2, 0.8);
    --delta: @r(±10)vmin;

    animation: k 10s linear infinite both;

    @keyframes k {
      from { transform: rotate(var(--rotate)) translate(var(--translate-x), var(--translate-y)) scale(var(--scale)); }
      to { transform: rotate(var(--rotate)) translate(calc(var(--translate-x) + var(--delta)), calc(var(--translate-y) - @r(3, 6)vmin)) scale(var(--scale)); }
    }

    filter: @svg-filter(
      feTurbulence {
        type: fractalNoise;
        baseFrequency: @r(0.01, 0.1) @r(0.2, 1);
      }
      feDisplacementMap {
        in: SourceGraphic;
        scale: @r(3, 4.5);
      }
    );

    @row(1, 2) {
      opacity: @p(0, 0, 1);
      transform: rotate(@r(-25, 25)deg) scale(@r(0.1, 0.5));
    }

    @row(10) {
      animation: none;
      background: radial-gradient(circle at 50% 44%, #000 0%, #000 10%, transparent 10%);
      transform: rotateY(@p(0, 180)deg) translate(@r(±50)%, @r(0, 10)%) scale(@r(0.5, 1.2));
      transform-origin: center bottom;
      filter: drop-shadow(@r(±30)vmin 0 0 @p(transparent, black));
      opacity: @r(0.6, 0.8);

      ::after {
        content: "";
        position: absolute;
        bottom: 0;
        left: 42%;
        width: 21%;
        height: 50%;
        background: #000;
        border-radius: 40% 20% 0 0;
      }

      ::before {
        content: "";
        position: absolute;
        bottom: 48%;
        left: 50%;
        width: @r(42, 50)%;
        height: 5%;
        background: #000;
        border-radius: 1vmin;
        transform: rotate(-38deg);
      }
    }

    @at(1, 10) {
      animation: none;
      opacity: 0;
    }

    @at(2, 10) {
      animation: none;
      opacity: 0;
    }

    @nth(1) {
      animation: none;
      opacity: .6;
      position: absolute;
      top: 0;
      left: 0;
      @size: 100%;
      transform: initial;
      filter: @svg-filter(
        feTurbulence {
          baseFrequency: 0.7;
          numOctaves: 2;
        }
      )
    }

    @nth(2) {
      animation: none;
      position: absolute;
      top: @r(3, 8)%;
      left: @r(5, 10)%;
      z-index: 2;
      width: 3vmin;
      height: 3vmin;
      background: #fff;
      border-radius: 50%;
      opacity: 0.8;
      transform: rotate(@r(-20, 20)deg);
      filter: drop-shadow(0 0 10px #fff);
    }
  </css-doodle>
</graph>
!

CSS 

              
                html,
body {
  height: 100%;
  margin: 0;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Ma Shan Zheng', cursive;
}

graph {
  position: relative;
  background: #fff;
  box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.1),
    0 6px 20px 0 rgba(0, 0, 0, 0.19);
  border-radius: 4px;
}

graph::after {
  content: "今年元夜时";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(calc(-50% + 3vmin), -50%);
  font-size: 2.5vmin;
  text-align: center;
  white-space: nowrap;
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: 6vmin;
}
!

JS
!
999px

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