js+css实现自定义缓动曲线的渐变遮罩、模糊及多层阴影代码-html代码-BFW代码库

代码语言：html

代码描述：js+css实现自定义缓动曲线的渐变遮罩、模糊及多层阴影代码

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">
  

  
  
<style>
@import url('https://unpkg.com/normalize.css') layer(normalize);

@layer normalize, base, demo;

@layer base {
  :root {
    --font-size-min: 16;
    --font-size-max: 20;
    --font-ratio-min: 1.2;
    --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 {
    background: light-dark(#fff, #000);
    display: grid;
    place-items: center;
    min-height: 100vh;
    font-family: 'SF Pro Text', 'SF Pro Icons', 'AOS Icons', 'Helvetica Neue',
      Helvetica, Arial, sans-serif, system-ui;
  }

  body::before {
    --size: 45px;
    --line: color-mix(in hsl, canvasText, transparent 80%);
    content: '';
    height: 100vh;
    width: 100vw;
    position: fixed;
    background: linear-gradient(
          90deg,
          var(--line) 1px,
          transparent 1px var(--size)
        )
        calc(var(--size) * 0.36) 50% / var(--size) var(--size),
      linear-gradient(var(--line) 1px, transparent 1px var(--size)) 0%
        calc(var(--size) * 0.32) / var(--size) var(--size);
    -webkit-mask: linear-gradient(-20deg, transparent 50%, white);
            mask: linear-gradient(-20deg, transparent 50%, white);
    top: 0;
    transform-style: flat;
    pointer-events: none;
    z-index: -1;
  }

  .bear-link {
    color: canvasText;
    position: fixed;
    top: 1rem;
    left: 1rem;
    width: 48px;
    aspect-ratio: 1;
    display: grid;
    place-items: center;
    opacity: 0.8;
  }

  :where(.x-link, .bear-link):is(:hover, :focus-visible) {
    opacity: 1;
  }

  .bear-link svg {
    width: 75%;
  }

  /* Utilities */
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
  }
}

@layer demo {
  .cards {
    display: grid;
    place-items: center;
  }

  .cards > .resizable {
    grid-area: 1 / 1;
    transition-property: filter, scale, opacity, translate;
    transition-duration: 0.26s;
    transition-timing-function: ease-out;
  }

  .cards > .resizable:first-child {
    z-index: 1;
  }

  .comparing > .resizable:first-child {
    translate: calc(-50% - 12px) 0;
  }

  .comparing > .comparison {
    translate: calc(50% + 12px) 0;
  }

  .resizable {
    position: relative;
    width: 400px;
    height: 300px;
    min-width: 100px;
    min-height: 100px;
    max-width: 90vw;
    max-height: 80vh;
    resize: both;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 4px 24px hsl(0 0% 0% / 0.2);
  }

  .comparison {
    resize: none;
    opacity: 0;
    filter: blur(4px);
    scale: 0.9;
  }

  .comparing .comparison {
    opacity: 1;
    scale: 1;
    filter: blur(0px);
  }

  .card-label {
    position: absolute;
    bottom: 8px;
    left: 50%;
    translate: -50% 0;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: white;
    background: hsl(0 0% 0% / 0.5);
    padding: 3px 8px;
    border-radius: 4px;
    pointer-events: none;
    z-index: 5;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.35s ease;
  }

  .comparing .card-label {
    opacity: 1;
  }

  [data-hide-image] {
    background: light-dark(hsl(0 0% 90%), hsl(0 0% 15%));
  }

  [data-hide-image] .image {
    
  }

  .image {
    display: block;
    width: 100%;
    height: 100%;
    -o-object-fit: cover;
       object-fit: cover;
  }

  /* Mode: overlay — gradient sits on top of the image */
  [data-mode='overlay'] .overlay {
    position: absolute;
    inset: 0;
    background-image: var(--eased-gradient);
    pointer-events: none;
  }

  [data-mode='overlay'] .image {
    mask-image: none;
    -webkit-mask-image: none;
  }

  /* Mode: overlay-blur — gradient overlay with backdrop blur masked by inverse gradient */
  [data-mode='overlay-blur'] .overlay {
    position: absolute;
    inset: 0;
    background-color: var(--blur-bg, transparent);
    backdrop-filter: blur(var(--blur-amount, 12px));
    -webkit-backdrop-filter: blur(var(--blur-amount, 12px));
    mask-image: var(--eased-gradient);
    -webkit-mask-image: var(--eased-gradient);
    pointer-events: none;
  }

  [data-mode='overlay-blur'] .image {
    mask-image: none;
    -webkit-mask-image: none;
  }

  /* Mode: mask — gradient masks the image directly, no overlay */
  [data-mode='mask'] .overlay {
    display: none;
  }

  [data-mode='mask'] .image {
    mask-image: var(--eased-gradient);
    -webkit-mask-image: var(--eased-gradient);
  }

  /* Mode: box-shadow — multi-layered eased box shadow */
  [data-mode='box-shadow'] .overlay {
    display: none;
  }

  [data-mode='box-shadow'] .image {
    mask-image: none;
    -webkit-mask-image: none;
  }

  [data-mode='box-shadow'] .resizable {
    box-shadow: var(--eased-shadow);
    overflow: visible;
  }

  /* Mode: drop-shadow — multi-layered eased filter shadow */
  [data-mode='drop-shadow'] .overlay {
    display: none;
  }

  [data-mode='drop-shadow'] .image {
    mask-image: none;
    -webkit-mask-image: none;
  }

  [data-mode='drop-shadow'] .resizable {
    filter: var(--eased-shadow);
    overflow: visible;
  }
}

div.tp-dfwv {
  width: 280px;
  position: fixed;
  border-radius: var(--bs-br);

  .tp-rotv {
    max-height: calc(100vh - 16px);
    overflow: auto;
    border-radius: var(--bs-br);

    & > .tp-rotv_b {
      position: sticky;
      top: 0;
      z-index: 2;
      background: hsla(228.66, 4.5956%, 28.542%);
    }
  .........完整代码请登录后点击上方下载按钮下载查看