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css - Fluent设计系统的纯CSS丙烯酸 Material

随着Microsoft的Fluent Design System的出现以及新的丙烯酸 Material 在Windows生态系统中的传播，我认为在某些Web布局中使用它会很棒。

根据the spec，丙烯酸层的组成为:

css - Fluent设计系统的纯CSS丙烯酸 Material-LMLPHP

因此，我尝试通过该图中的图层启发的纯CSS方法:

body {
  margin: 0;
  font: 1em/1.4 Sans-serif;
  background: url("https://cdn.pixabay.com/photo/2017/03/27/16/50/beach-2179624_1280.jpg") center center;
  background-size: 100vw auto;
}

main {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.acrylic {
  padding: 4em 6em;
  position: relative;
  overflow: hidden;
}

.acrylic::before {
  background: url("https://cdn.pixabay.com/photo/2017/03/27/16/50/beach-2179624_1280.jpg") center center;
  background-size: 100vw auto;
  filter: blur(10px);
  content: "";
  position: absolute;
  left: -10px;
  top: -10px;
  width: calc(100% + 20px);
  height: calc(100% + 20px);
  z-index: -1;
}

.acrylic::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
  opacity: 0.65;
  border: 1px solid #fff;
  background: #fff;
  background-image: url(data:image/png;base64,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);
}

.shadow {
  border-radius: 1px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1), 0 1px 8px rgba(0, 0, 0, 0.2);
}
<main>
  <div class="acrylic shadow">
    Acrylic material!
  </div>
</main>


结果确实接近规范，并且也具有响应能力，但是存在一个大问题:仅堆叠另一个.acrylic div，背景技巧将不再起作用。

问题是:是否有一些更智能的方式来进行高斯模糊而不复制每个 child 的 body 背景？还是一些更聪明的方法来动态计算其位置？

更新

由于backdrop-filter CSS功能终于在7月29日ᵗʰshipped in Chrome 76了，因此我们have a really simplified approach to solve it，使原来的问题比以前容易得多。

最佳答案

有两种方法可以做到这一点...

  • .acrylic上的bg模糊
    实现复杂，但可以在大多数现代浏览器上运行。
  • 上的
  • backdrop-filter实现非常简单，但缺乏浏览器支持。

    • 1. .acrylic上的bg模糊

    我们也需要在.acrylic上复制bg，因为仅降低不透明度将显示其背后的内容而不是其中的内容，而AFAIK不会被模糊滤镜覆盖...

    计算位置的聪明方法是为父元素(.acrylic)和background-attachment: fixed都设置body，这也将允许您有多个.acrylic guest ；)

    由于我们为 parent 和 child 使用相同的背景，因此我们可以将他们聚在一起；)
    body, .acrylic::before {
  background: url("IMG_URL_HERE") center/cover;
  background-attachment: fixed;
}

    这是一个工作片段；)
    降低了.acrylic的不透明度，使背景更明显;)

    body {
  margin: 0;
  font: 1em/1.4 Sans-serif;
}

body, .acrylic::before {
  background: url("https://images.unsplash.com/photo-1452723312111-3a7d0db0e024?w=700") center/cover;
  background-attachment: fixed;
}

main {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.acrylic {
  padding: 4em 6em;
  position: relative;
  overflow: hidden;
  margin: 1em;
}

.acrylic::before {
  filter: blur(10px);
  content: "";
  position: absolute;
  left: -10px;
  top: -10px;
  width: calc(100% + 20px);
  height: calc(100% + 20px);
  z-index: -1;
}

.acrylic::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
  opacity: 0.35;
  border: 1px solid #fff;
  background: #fff;
  background-image: url(data:image/png;base64,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);
}

.shadow {
  border-radius: 1px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1), 0 1px 8px rgba(0, 0, 0, 0.2);
}
    <main>
  <div class="acrylic shadow">
    Acrylic material!
  </div>
  <div class="acrylic shadow">
    Acrylic material!
  </div>
</main>

<main>
  <div class="acrylic shadow">
    Acrylic material!
  </div>
  <div class="acrylic shadow">
    Acrylic material!
  </div>
</main>

<main>
  <div class="acrylic shadow">
    Acrylic material!
  </div>
</main>


    2.(不支持).acrylic:after上的backdrop-filter
    main {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.acrylic {
  padding: 4em 6em;
  position: relative;
  background: rgba(0,0,0,0.5);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  margin: 7px;
}

body {
  background: url("https://images.unsplash.com/photo-1452723312111-3a7d0db0e024?w=700") center/cover;
  background-attachment: fixed;
  margin: 0;
  font: 1em/1.4 Sans-serif;
  color: #fff;
}
    <main>
  <div class="acrylic shadow">
    Acrylic material!
  </div>
  <div class="acrylic shadow">
    Acrylic material!
  </div>
</main>

<main>
  <div class="acrylic shadow">
    Acrylic material!
  </div>
  <div class="acrylic shadow">
    Acrylic material!
  </div>
</main>

<main>
  <div class="acrylic shadow">
    Acrylic material!
  </div>
</main>

    10-06 07:48
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