CODEWITHSUNDEEP
csscss-grid
davidpmccormick
davidpmccormick

Reputation: 308

Make `minmax` take whichever is smaller from a `px` or `fr` max value

I'm trying to make a sidebar that has a minimum-width of 200px and a maximum of whichever is smaller out of 3fr and 300px, and would like it to tend toward the smallest value it can be. The closest behaviour to what I'd like is minmax(200px, 3fr), but 3fr will continue to grow above 300px . I think what I'd like is minmax(3fr, 300px), but frs aren't allowed as the first argument to minmax. Is there a way to do this without a media query?

.grid {
  display: grid;
  grid-template-columns: minmax(200px, 3fr) 9fr; // this is what I want up till c. 1200px wide
  // grid-template-columns: minmax(200px, 300px) 9fr; // this makes the sidebar too wide until c. 1200px wide
  height: 100vh;
}

.sidebar {
  background: hotpink;
}

.main {
  background: dodgerblue;
}
<div class="grid">
  <div class="sidebar">Lorem ipsum dolor sit, amet consectetur adipisicing elit. Amet vitae quae nostrum quisquam eveniet laboriosam iste repudiandae provident saepe minima, modi nesciunt accusamus, quia inventore ratione quo beatae consectetur sapiente?</div>
  <div class="main"><p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Illum voluptas velit doloribus ipsam, nesciunt quibusdam veniam aut quas qui, mollitia laudantium enim explicabo eaque tenetur? Labore quibusdam maiores dolorem exercitationem!</p>
  <p>Ex adipisci aperiam voluptas veritatis aspernatur perspiciatis nihil impedit blanditiis neque aliquam nemo minima at, voluptates facere. Dicta exercitationem explicabo quasi ea facilis iusto, laudantium quibusdam veritatis animi provident culpa!</p>
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  <p>Odio rem minus accusamus deleniti, laboriosam voluptates dicta quia. Dolores nostrum voluptates eius odio aut maiores! Repellat nisi dolor laborum aspernatur ipsam? Quam quos hic est beatae blanditiis error sapiente?</p>
  <p>Perspiciatis nostrum iusto delectus modi excepturi facere quisquam, cupiditate animi ducimus? Numquam, labore officia, ad sapiente quo quos tempora minima repudiandae perspiciatis facere ullam, distinctio molestias expedita magni dolore dolores?</p>
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</div>

Upvotes: 2

Views: 457

Answers (1)

Michael Benjamin
Michael Benjamin

Reputation: 372149

The fr unit doesn't actually represent a length. It represents remaining space.

So saying you want the lesser of px or fr is kind of like apples and oranges.

fr can't be determined until all actual lengths have been rendered.

You may be able to work this out using a combination of minmax() at the container level, and min-width / max-width at the item level.

For example:

The closest behaviour to what I'd like is minmax(200px, 3fr), but 3fr will continue to grow above 300px.

So what about:

.grid {
   display: grid;
   grid-template-columns: minmax(200px, 3fr) 9fr;
}

.sidebar {
   max-width: 300px;
}

Upvotes: 1

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