Is there a way to remove a div but keep its elements?

Question

I need elements inside a div to be outside of their div for different screen sizes.

I currently have the html repeated and am hiding it in certain viewports, this ob

Answer 1

You can try this(if you want):

<div class="container">
  <div class="one d-none d-md-block">
    <p>Content 1</p>
  </div>

  <p class="d-block d-md-none">Content 1</p>

  <p>Content 2</p>
</div>

For CSS part:

.d-none {
  display: none;
}

.d-md-none {
  display: none;
}

.d-md-block {
  display: block;
}

// Extra small devices (portrait phones, less than 576px) 
@media (max-width: 575.98px) {
  .d-none {
    display: none;
  }

  .d-block {
    display: block;
  }
}

This method is actually came from Bootstrap. But if you don't want to use it you may try to add the code into your HTML and CSS.

Answer 2

This is the perfect use case of display:contents; (https://caniuse.com/#feat=css-display-contents)

display: contents causes an element's children to appear as if they were direct children of the element's parent, ignoring the element itself. This can be useful when a wrapper element should be ignored when using CSS grid or similar layout techniques.

.container {
  display:flex;
}

.one {
  display:contents;
} 

.one p:first-child {
 order:2;
}

<div class="container">

 <div class="one">
  <p>Content 1</p>
  <p>Content 3</p>
 </div>

 <p>Content 2</p>

</div>