gsap实现网页滚动文字上下滑动效果代码-html代码-BFW代码库

代码语言：html

代码描述：gsap实现网页滚动文字上下滑动效果代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

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

<head>
  <meta charset="UTF-8">
  
  <meta
      name="viewport"
      content="width=device-width, initial-scale=1, user-scalable=0, maximum-scale=1.0"
    />
  

  
<style>
@import url('https://fonts.googleapis.com/css2?family=Geist:wght@100..900&display=swap');
@import url('//repo.bfw.wiki/bfwrepo/css/normalize.5.0.css') layer(normalize);

@layer normalize, base, demo, stick, effect, srollbar;

@layer scrollbar {
  @property --scroller {
    initial-value: 0;
    syntax: '<number>';
    inherits: true;
  }
  @property --chroma {
    initial-value: 0;
    syntax: '<number>';
    inherits: true;
  }
  
  [data-sync-scrollbar='false'] {
    scrollbar-color: light-dark(black, white) #0000;
  }

  [data-sync-scrollbar='true'] {
    scrollbar-color: oklch(var(--lightness) var(--chroma) var(--scroller)) #0000;
  }
  @supports (animation-timeline: scroll()) and (animation-range: 0% 100%) {
    [data-sync-scrollbar='true'] {
      timeline-scope: --list;
      scrollbar-color: oklch(var(--lightness) var(--chroma, 0) var(--scroller))
        #0000;
      -webkit-animation-name: change, chroma-on, chroma-off;
              animation-name: change, chroma-on, chroma-off;
      -webkit-animation-fill-mode: both;
              animation-fill-mode: both;
      -webkit-animation-timing-function: linear;
              animation-timing-function: linear;
      /* animation-timeline: scroll(root); */
      animation-range: entry 50% exit 50%, entry 40% entry 50%,
        exit 30% exit 40%;
      animation-timeline: --list;
      ul {
        view-timeline: --list;
      }
    }
  }

  @-webkit-keyframes change {
    to {
      --scroller: var(--end);
    }
  }

  @keyframes change {
    to {
      --scroller: var(--end);
    }
  }
  @-webkit-keyframes chroma-on {
    to {
      --chroma: 0.3;
    }
  }
  @keyframes chroma-on {
    to {
      --chroma: 0.3;
    }
  }
  @-webkit-keyframes chroma-off {
    to {
      --chroma: 0;
    }
  }
  @keyframes chroma-off {
    to {
      --chroma: 0;
    }
  }
}

@layer effect {
  :root {
    --start: 0;
    --end: 360;
    --lightness: 65%;
    --base-chroma: 0.3;
  }
  [data-theme='dark'] {
    --lightness: 75%;
  }
  [data-theme='light'] {
    --lightness: 65%;
  }
  @media (prefers-color-scheme: dark) {
    --lightness: 75%;
  }
  ul {
    --step: calc((var(--end) - var(--start)) / (var(--count) - 1));
  }
  li:not(:last-of-type) {
    color: oklch(
      var(--lightness) var(--base-chroma)
        calc(var(--start) + (var(--step) * var(--i)))
    );
  }

  @supports (animation-timeline: scroll()) and (animation-range: 0% 100%) {
    li {
      opacity: 0.2;
      -webkit-animation-name: brighten;
              animation-name: brighten;

      &:first-of-type {
        opacity: 1;
        -webkit-animation-name: dim;
                animation-name: dim;
      }
      &:last-of-type {
        opacity: 0.2;
        -webkit-animation-name: bright;
                animation-name: bright;
      }
      -webkit-animation-fill-mode: both;
              animation-fill-mode: both;
      -webkit-animation-timing-function: linear;
              animation-timing-function: linear;
      animation-range: cover calc(50% - 1lh) calc(50% + 1lh);
      animation-timeline: view();
    }

    @-webkit-keyframes dim {
      0%,
      50% {
        opacity: 1;
      }
      100% {
        opacity: 0.2;
      }
    }

    @keyframes dim {
      0%,
      50% {
        opacity: 1;
      }
      100% {
        opacity: 0.2;
      }
    }

    @-webkit-keyframes bright {
      0% {
        opacity: 0.2;
      }
      50%,
      100% {
        opacity: 1;
      }
    }

    @keyframes bright {
      0% {
        opacity: 0.2;
      }
      50%,
      100% {
        opacity: 1;
      }
    }

    @-webkit-keyframes brighten {
      0%,
      100% {
        opacity: 0.2;
      }
      50% {
        opacity: 1;
        filter: brightness(1.2);
      }
    }

    @keyframes brighten {
      0%,
      100% {
        opacity: 0.2;
      }
      50% {
        opacity: 1;
        filter: brightness(1.2);
      }
    }
  }
}

@layer stick {
  section:first-of-type {
    --font-level: 6;
    --font-size-min: 20;
    display: flex;
    line-height: 1.25;
    width: 100%;
    padding-left: 2rem;
    @media(min-width: 768px) {
      padding-left: 5rem;
    }
  }
  section:last-of-type {
    min-height: 100svh;
    display: flex;
    place-items: center;
    width: 100%;
    justify-content: center;

    h2 {
      --font-level: 6;
      --font-size-min: 20;
    }
  }
  main {
    width: 100%;
  }
  section:first-of-type h2 {
    position: sticky;
    top: calc(50% - 0.5lh);
    font-size: inherit;
    margin: 0;
    display: inline-block;
    height: -webkit-fit-content;
    height: -moz-fit-content;
    height: fit-content;
    font-weight: 600;
  }
  ul {
    font-weight: 600;
    padding-inline: 0;
    margin: 0;
    list-style-type: none;
  }
  html {
    -ms-scroll-snap-type: y proximity;
        scroll-snap-type: y proximity;
  }
  li {
    scroll-snap-align: center;
  }
  h2,
  li:last-of-type {
    background: linear-gradient(
      canvasText 50%,
      color-mix(in oklch, canvas, canvasText 25%)
    );
    -webkit-background-clip: text;
            background-clip: text;
    color: #0000;
  }
}

@layer demo {
  header {
    min-height: 100svh;
    display: flex;
    place-items: center;
    width: 100%;
    padding-inline: 2rem;
    @media(min-width: 768px) {
      padding-inine: 5rem;
    }
  }

  footer {
    padding-block: 2rem;
    opacity: 0.5;
  }

  h1 {
    --font-size-min: 24;
    --font-level: 8;
    text-wrap: pretty;
    line-height: 0.8;
    margin: 0;
    background: linear-gradient(
      canvasText 60%,
      color-mix(in oklch, canvas, canvasText)
    );
    -webkit-background-clip: text;
            background-clip: text;
    color: #0000;
  }
}

@layer base {
  :root {
    --font-size-min: 14;
    --font-size-max: 20;
    --font-ratio-min: 1.1;
    --font-ratio-max: 1.33;
    --font-width-min: 375;
    --font-width-max: 1500;
  }

  html {
    color-scheme: light dark;
  }

  [data-theme='light'] {
    color-scheme: light only;
  }

  [data-theme='dark'] {
    color-scheme: dark only;
  }

  :where(.fluid) {
    --fluid-min: calc(
      var(--font-size-min) * pow(var(--font-ratio-min), var(--font-level, 0))
    );
    --fluid-max: calc(
      var(--font-size-max) * pow(var(--font-ratio-max), var(--font-level, 0))
    );
    --fluid-preferred: calc(
      (var(--fluid-max) - var(--fluid-min)) /
        (var(--font-width-max) - var(--font-width-min))
    );
    --fluid-type: clamp(
      (var(--fluid-min) / 16) * 1rem,
      ((var(--fluid-min) / 16) * 1rem) -
        (((var(--fluid-preferred) * var(--font-width-min)) / 16) * 1rem) +
        (var(--fluid-preferred) * var(--variable-unit, 100vi)),
      (var(--fluid-max) / 16) * 1rem
    );
    font-size: var(--fluid-type);
  }

  *,
  *:after,
  *:before {
    box-sizing: border-box;
  }

  body {
    display: grid;
  .........完整代码请登录后点击上方下载按钮下载查看