nth-child alternating layout not working (not skipping cards) [duplicate] - html

Question

This question already has answers here:
Can I combine :nth-child() or :nth-of-type() with an arbitrary selector?
(8 answers)
Closed 4 months ago.
I have a section where every even card has margin, to give it that masonry type effect.
I have two types of cards, they vary only based on the widths they occupy.
In my demo, I have each sm card wrapped in the .customCard__column--sm class. This class is what differentiates it from the wider card.
In my CSS, I've defined my even .customCard's that have the class .customCard__column--sm to have margin.
However, in my demo, card 4 is using the nth-child(odd) css.
Cards 4 and 5 should follow the same pattern as cards 1 and 2.
Why is this happening?
main {
background: #000000;
font-family: "Poppins", sans-serif;
color: #ffffff;
}
/* listing */
.listing {
padding: 100px 0;
}
.customCard {
border: 1px solid #ffffff;
padding: 30px;
width: 100%;
display: flex;
align-items: center;
justify-content: center;
margin-bottom: 80px;
height: 300px;
}
#media (min-width: 768px) {
.customCard__column--sm:nth-child(odd) .customCard {
margin-right: 18px;
}
}
#media (min-width: 768px) {
.customCard__column--sm:nth-child(even) .customCard {
margin-top: 120px;
margin-left: 18px;
margin-right: 0;
}
}
#media (min-width: 1200px) {
.customCard__column--sm:nth-child(even) .customCard {
margin-top: 178px;
}
}
.customCard__column--sm .customCard--large {
margin-right: 0;
}
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Poppins:wght#700&display=swap" rel="stylesheet">
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<main class="listing">
<div class="container">
<div class="row">
<div class="col-12 col-md-6 d-flex customCard__column customCard__column--sm">
<article class="customCard">Card 1 (SM)</article>
</div>
<div class="col-12 col-md-6 d-flex customCard__column customCard__column--sm">
<article class="customCard">Card 2 (SM)</article>
</div>
<div class="col-12 d-flex customCard__column">
<article class="customCard customCard--large">Card 3 (LG)</article>
</div>
<div class="col-12 col-md-6 d-flex customCard__column customCard__column--sm">
<article class="customCard">Card 4 (SM)</article>
</div>
<div class="col-12 col-md-6 d-flex customCard__column customCard__column--sm">
<article class="customCard">Card 5 (SM)</article>
</div>
</div>
</div>
</main>

Answer 1

:nth-child means "nth child". It doesn't mean "nth child only counting the other features of this selector".
Card 4 is the 5th child (of <div class="row">), which is an odd numbered one.
You'll need to use markup (e.g. another class name) to handle distinguishing when your sequence resets.