Exclude some part from background blend mode - css

Question

I try to achieve effect similar to Photoshop multiply via code on my project. At the same time i try to exclude some elements that are in child div to be affected by it (like text layers) - and i hit in the wall. Tried already adding additional div's setting different z-index's or go with absolute position.
Here you can find pen with example of the problem:
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;
}
Summary: Child element's of 'child div' are affected by multiply. Is there a way to prevent that?
Screenshots:

Answer 1

Use pseudo element for the background to avoid this:
.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>