min(), max(), and clamp() are CSS magic!

Nice video from Kevin Powell. Here are some notes, thoughts, and stuff I learned while watching it. Right when they came out, I was mostly obsessed with font-size usage, but they are just functions, so they can be used anywhere you’d use a number, like a length.

Sometimes pretty basic usage allows for tighter code, but the change to get there feels a little mind-bending. Like how to set a max() here, you really use min().

.el {
  width: 75%;
  max-width: 600px;

  /* tighter, but the change from max to min feels weird */
  width: min(75%, 600px);
}

The min() and max() functions can take more than two values, which is cool, but certainly mind-bending in its own right. It would be nice if DevTools could tell you which one it picked at any given time.

.el {
  width: min(100px, 25%, 50vh, 30ch);
}

You don’t need a calc() to do math inside! This is cool:

.el {
  width: min(10vw + 10%, 100px);
}

It’s reasonable you’d want to be setting a min and max value. You can nest the functions to do this, but it’s less mind-bendy to do with clamp().

.el {
  /* Note we're always using a relative unit somewhere
     so that zooming stays effective. */
  font-size: clamp(0.9rem, 1vw + 1rem, 2.2rem);
}

Here’s the video embedded:

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from CSS-Tricks https://www.youtube.com/watch?v=U9VF-4euyRo
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