Sticky Definition Lists

Publikováno: 28.10.2021

I ran across this 30 seconds of code website the other day, and they have a CSS section which is really good! The first example snippet I looked at was this “floating section headers” example, reminding me yet again how …


The post Sticky Definition Lists appeared first on CSS-Tricks. You can support CSS-Tricks by being an MVP Supporter.

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I ran across this 30 seconds of code website the other day, and they have a CSS section which is really good! The first example snippet I looked at was this “floating section headers” example, reminding me yet again how satisfying definition lists can be.

With nice simple HTML like this:

<div class="floating-stack">
  <dl>
    <dt>A</dt>
    <dd>Algeria</dd>
    <dd>Angola</dd>

    <dt>B</dt>
    <dd>Benin</dd>
    <dd>Botswana</dd>
    <dd>Burkina Faso</dd>
    <dd>Burundi</dd>

    <dt>C</dt>
    <dd>Cabo Verde</dd>
    <dd>Cameroon</dd>
    <dd>Central African Republic</dd>
    <dd>Chad</dd>
    <dd>Comoros</dd>
    <dd>Congo, Democratic Republic of the</dd>
    <dd>Congo, Republic of the</dd>
    <dd>Cote d'Ivoire</dd>

    <dt>D</dt>
    <dd>Djibouti</dd>

    <dt>E</dt>
    <dd>Egypt</dd>
    <dd>Equatorial Guinea</dd>
    <dd>Eritrea</dd>
    <dd>Eswatini (formerly Swaziland)</dd>
    <dd>Ethiopia</dd>
  </dl>
</div>

The default browser styling — no CSS at all — looks like this:

So, each of those <dt>s, in this case, happen to be nicely tucked away to the left in the space that the margin-inline-start makes for the <dd>s. Which means that in extremely little CSS we can kick on that “stick sections” concept:

dt {
  position: sticky;
  top: 0;
  background: white;
  display: inline-block;
}

I love the simplicity of that.

And now that the core “functionality” works, the rest of the styling is just aesthetic sugar:

The version on 30 seconds of code uses a CSS Grid layout for the list items, which admittedly is more robust. I just thought it was interesting how close you can get in so little CSS without it. They also have a version where the <dt>s stretch the whole width which is also nice.


The post Sticky Definition Lists appeared first on CSS-Tricks. You can support CSS-Tricks by being an MVP Supporter.

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