Two borders, second only right and bottom with a break

userJ3Dd 0
Viewed 38

I can't figure out, how I can achieve borders like this:

enter image description here

I was trying with after pseudoelement, like below but I learned from this topic: Why can't an element with a z-index value cover its child? that it's impossible.

I was thinking also about box shadow and outline but nothing seems to be a good solution. Any idea, please?

.wp-block-group.is-style-black-blue-border {
  position: relative;
  z-index: 1;
  border: 3px solid #000;
  border-radius: 8px;
  padding: 10px;
}

.wp-block-group.is-style-black-blue-border::after {
  content: "";
  width: calc(100% + 6px);
  height: calc(100% + 6px);
  display: block;
  position: absolute;
  bottom: -8px;
  right: -8px;
  z-index: -1;
  border: 3px solid blue;
  border-radius: 8px;
}
<div class="wp-block-group is-style-black-blue-border">
  <div class="wp-block-group__inner-container">
    <p>some content</p>
  </div>
</div>

z-index border pseudo-element css
1 Answers

As an alternative you can use box-shadow to create a similar effect. See below.

Edited to add: The effect can be done, see below

.wp-block-group.is-style-black-blue-border {
  position: relative;
  background-color:white;
  border: 3px solid #000;
  border-radius: 8px;
  padding: 10px;
  width: 200px;
  height: 100px;
  
}

.wp-block-group.is-style-black-blue-border::after {
  content: "";
  width: 100%;
  height: 100%;
  display: block;
  position: absolute;
  top: 4px;
  left: 4px;
  z-index: -1;
  border: 3px solid blue;
  border-radius: 8px;
}
<div class="wp-block-group is-style-black-blue-border">
  <div class="wp-block-group__inner-container">
    <p>some content</p>
  </div>
</div>

.wp-block-group__inner-container {
  border: 2px solid black;
  border-radius: 1rem;
  box-shadow: 5px 5px 0px 2px #ffffff, 8px 8px 0px 4px #0000ff;
  width: 200px;
  height: 200px;
  padding: 1rem;
}
<div class="wp-block-group__inner-container">
    <p>some content</p>
</div>

userurKQ0
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