Can CSS be utilized to determine the present height of an element?

My attempt to align an element using a certain method has hit a snag when trying to retrieve the current height of the element using CSS.
Below is the code that works, albeit with some extra parts:

section{
  margin-top:calc(50vh);
  margin-bottom:calc(50vh);
}
<section style="background:red;">q<br><br>q</section>

The following code represents what I am aiming for, but unfortunately it's not functioning as intended:

section{
  margin-top:calc(50vh - attr(clientHeight));
  margin-bottom:calc(50vh - attr(clientHeight));
}
<section style="background:red;">q<br><br>q</section>

I'm seeking guidance on how to obtain the height of an element, with the focus being solely on this aspect rather than vertical alignment of elements. Additionally, I prefer a solution that relies solely on CSS.

htmlcss

Answer №1

I trust that this illustration will be beneficial for you

body {
    padding: 0px;
    margin: 0px;
}

.wrap {
    display: flex;
    align-items: center;
    justify-content: center;

    height: 100vh;
}
<div class="wrap">
    <section style="background:red;">
        123
        <br><br>
        123
    </section>
</div>

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