Question

我发现这篇帖子CSS-only Acrylic Material from Fluent Design System很棒，但它有一个很大的问题。当我尝试使用多个background image时，它不再起作用，因为需要以下代码：

body, .acrylic::before {
 background: url("img1.jpg") center/cover;
 background-attachment: fixed;
}

但是我想为页面部分使用不同的背景图像：

 body {
 background: #FFF;     
 }

.hero {
 background-image: url(img1.jpg);
}

.about {
 background-image: url(img2.jpg);
 }

我需要能够在页面的任何位置使用丙烯酸材料效果，如下所示：

<body>
<div class="hero">
<h1>I´m a hero</h1>
<a href="#section">Scroll down link</a>
</div>
<div id=section class="about"><p>Section has different background image <span class="acrylic">but this content is on the Acrylic Fluent Design surface<span/></p><div/>
</body>

所以我需要丙烯酸表面作为通用设计组件，没有原始帖子的限制。如果有人知道怎么做，我会非常感谢任何帮助。谢谢（抱歉我的写作不好 - 我不是母语，所以我希望你能理解我写的一切:)）

Answer 1

您链接到的问题的原始答案说明：

由于我们对父母和孩子使用相同的背景，我们可以将他们聚在一起;）

然而，对于您的场景情况并非如此，您实际上希望每个元素都有自己的背景，对吧？如果我正确理解你，那么你可以删除你的这部分css：

body, .acrylic::before {
  background: url("img1.jpg") center/cover;
  background-attachment: fixed;
}

然后分别设置每个部分的背景以及部分的.acrylic背景，请参阅以下内容：

＆＃13;

main {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  width: 50%;
  float: left;
}

.acrylic {
  padding: 4em 6em;
  position: relative;
  overflow: hidden;
}

.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);
}

/* From here down are the changes to the original answer */

.hero,
.about {
  position: relative;
  z-index: -1;
}

.hero,
.hero .acrylic::before {
  background: url("https://images.unsplash.com/photo-1427434991195-f42379e2139d?auto=format&fit=crop&w=1189&q=60&ixid=dW5zcGxhc2guY29tOzs7Ozs%3D") center/cover;
}
    
.about,
.about .acrylic::before {
  background: url("https://images.unsplash.com/photo-1452723312111-3a7d0db0e024?w=700") center/cover;
}

＆＃13;

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

＆＃13;

Answer 2

你能尝试一下，也许它有效：

hero, .acrylic::before {
background: url("img1.jpg") center/cover;
background-attachment: fixed;
}

about, .acrylic::before {
background: url("img2.jpg") center/cover;
background-attachment: fixed;
}

是否有可能您提供截图如何拥有它？：）

流畅的设计系统CSS - 改进

2 个答案: