从背景混合模式中排除某些部分

Question

我尝试在我的项目中通过代码实现类似于 Photoshop 乘法的效果。同时，我尝试排除子 div 中受其影响的某些元素（如文本层）——结果我碰壁了。已尝试添加其他 div 设置不同的 z-index 或使用绝对位置。

Here 你可以找到带有问题示例的笔：

HTML

<div class="main">
  <div class="inner">
    <h1>Some header</h1>
    <p>Lorem ipsum, dolor sit amet consectetur adipisicing elit. Quia eligendi est eius unde autem dolore adipisci perspiciatis laboriosam reiciendis placeat! Eveniet, quam? Vitae sit saepe quam delectus fugiat, dolores necessitatibus.</p>
  </div>
</div>

CSS

.inner {
  text-align: center;
  padding: 50px 0;
  background: #0079ff;
     mix-blend-mode: multiply;
    backface-visibility: hidden;
  color: white;
}

.main {
  background-repeat: no-repeat;
  background-image: url('https://preview.ibb.co/fMY2f9/Bg1.jpg');
  background-size: cover;
}

摘要： 'child div' 的子元素受乘法影响。有没有办法防止这种情况发生？

截图：

Answer 1

为背景使用伪元素来避免这种情况：

.inner {
  text-align: center;
  padding: 50px 0;
  color: white;
}

.main {
  background-repeat: no-repeat;
  background-image: url('https://preview.ibb.co/fMY2f9/Bg1.jpg');
  background-size: cover;
  position: relative;
  z-index: 0;
}

.main::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #0079ff;
  mix-blend-mode: multiply;
}

<div class="main">
  <div class="inner">
    <h1>Some header</h1>
    <p>Lorem ipsum, dolor sit amet consectetur adipisicing elit. Quia eligendi est eius unde autem dolore adipisci perspiciatis laboriosam reiciendis placeat! Eveniet, quam? Vitae sit saepe quam delectus fugiat, dolores necessitatibus.</p>
  </div>
</div>

从背景混合模式中排除某些部分

Exclude some part from background blend mode

css

background-image

background-color

mix-blend-mode