纯CSS铅笔预加载器

男娘i 2023-10-14 14:31 33阅读 0赞

纯CSS铅笔预加载器

Jon Kantner 通过交互式组件和微交互进行了令人印象深刻的演示。这个装载机也不例外。简单但充满细节（删除铅笔痕迹时橡皮擦的摆动非常有趣）。

![在这里插入图片描述][e90c7ce53759470b94022dd2f0b2aa25.webp_pic_center]

CSS

* {
        
      border: 0;
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    :root {
        
      --hue: 223;
      --bg: hsl(var(--hue),90%,90%);
      --fg: hsl(var(--hue),90%,10%);
      --trans-dur: 0.3s;
      font-size: calc(20px + (30 - 20) * (100vw - 320px) / (1280 - 320));
    }
    body {
        
      background: var(--bg);
      color: var(--fg);
      font: 1em/1.5 sans-serif;
      height: 100vh;
      display: grid;
      place-items: center;
    }
    .pencil {
        
      display: block;
      width: 10em;
      height: 10em;
    }
    .pencil__body1,
    .pencil__body2,
    .pencil__body3,
    .pencil__eraser,
    .pencil__eraser-skew,
    .pencil__point,
    .pencil__rotate,
    .pencil__stroke {
        
      animation-duration: 3s;
      animation-timing-function: linear;
      animation-iteration-count: infinite;
    }
    .pencil__body1,
    .pencil__body2,
    .pencil__body3 {
        
      transform: rotate(-90deg);
    }
    .pencil__body1 {
        
      animation-name: pencilBody1;
    }
    .pencil__body2 {
        
      animation-name: pencilBody2;
    }
    .pencil__body3 {
        
      animation-name: pencilBody3;
    }
    .pencil__eraser {
        
      animation-name: pencilEraser;
      transform: rotate(-90deg) translate(49px,0);
    }
    .pencil__eraser-skew {
        
      animation-name: pencilEraserSkew;
      animation-timing-function: ease-in-out;
    }
    .pencil__point {
        
      animation-name: pencilPoint;
      transform: rotate(-90deg) translate(49px,-30px);
    }
    .pencil__rotate {
        
      animation-name: pencilRotate;
    }
    .pencil__stroke {
        
      animation-name: pencilStroke;
      transform: translate(100px,100px) rotate(-113deg);
    }
    
    /* Animations */
    @keyframes pencilBody1 {
        
      from,
      to {
        
        stroke-dashoffset: 351.86;
        transform: rotate(-90deg);
      }
      50% {
        
        stroke-dashoffset: 150.8; /* 3/8 of diameter */
        transform: rotate(-225deg);
      }
    }
    @keyframes pencilBody2 {
        
      from,
      to {
        
        stroke-dashoffset: 406.84;
        transform: rotate(-90deg);
      }
      50% {
        
        stroke-dashoffset: 174.36;
        transform: rotate(-225deg);
      }
    }
    @keyframes pencilBody3 {
        
      from,
      to {
        
        stroke-dashoffset: 296.88;
        transform: rotate(-90deg);
      }
      50% {
        
        stroke-dashoffset: 127.23;
        transform: rotate(-225deg);
      }
    }
    @keyframes pencilEraser {
        
      from,
      to {
        
        transform: rotate(-45deg) translate(49px,0);
      }
      50% {
        
        transform: rotate(0deg) translate(49px,0);
      }
    }
    @keyframes pencilEraserSkew {
        
      from,
      32.5%,
      67.5%,
      to {
        
        transform: skewX(0);
      }
      35%,
      65% {
        
        transform: skewX(-4deg);
      }
      37.5%, 
      62.5% {
        
        transform: skewX(8deg);
      }
      40%,
      45%,
      50%,
      55%,
      60% {
        
        transform: skewX(-15deg);
      }
      42.5%,
      47.5%,
      52.5%,
      57.5% {
        
        transform: skewX(15deg);
      }
    }
    @keyframes pencilPoint {
        
      from,
      to {
        
        transform: rotate(-90deg) translate(49px,-30px);
      }
      50% {
        
        transform: rotate(-225deg) translate(49px,-30px);
      }
    }
    @keyframes pencilRotate {
        
      from {
        
        transform: translate(100px,100px) rotate(0);
      }
      to {
        
        transform: translate(100px,100px) rotate(720deg);
      }
    }
    @keyframes pencilStroke {
        
      from {
        
        stroke-dashoffset: 439.82;
        transform: translate(100px,100px) rotate(-113deg);
      }
      50% {
        
        stroke-dashoffset: 164.93;
        transform: translate(100px,100px) rotate(-113deg);
      }
      75%,
      to {
        
        stroke-dashoffset: 439.82;
        transform: translate(100px,100px) rotate(112deg);
      }
    }

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[e90c7ce53759470b94022dd2f0b2aa25.webp_pic_center]: https://img-blog.csdnimg.cn/e90c7ce53759470b94022dd2f0b2aa25.webp#pic_center