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Custom List Number Styling

How about a classic CSS trick! This isn't even so tricky anymore, since CSS has counter-increment and counter-reset and such that is perfect for this. I just wanted to make sure you knew how it works and had some easy-to-copy examples at the ready.… Read article

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Counting With CSS Counters and CSS Grid

In this post, we're going to demonstrate how we can use the source order independence of CSS Grid to solve a layout issue that's the result of a source order constraint. Specifically, we're going to look at checkboxes and CSS Counters—two concepts that rely on source order when used together.

Almanac

counter-increment

Ordered lists aren't the only elements that can be automatically numbered. Thanks to the various counter-related properties, any element can be.

<body>
  <section></section>
  <section></section>
  <section></section>
  <section></section>
</body>
body {
  counter-reset: my-awesome-counter;
}
section {
  counter-increment: my-awesome-counter;
}
section:before {
  content: counter(my-awesome-counter);
}

Each <section> will respectively start with "1", "2", "3", or "4".

You can control the style of the counter by comma separating the counter function. e.g. to make them use Roman numerals:

section:before {
  content: counter(my-awesome-counter, upper-roman);
}
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