CSS grid with fixed sidebar

Question

I need a fixed header and sidebar on my site, beyond a central div. The sidebar should have a scrollbar of its own, just like the central div. I thought that grid layout would be the way to do this, but I can't avoid the body to display a common scrollbar, instead of each container displaying its own.

How should I do it? Is grid indeed the simpler solution?

body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto 1fr;
  margin: 0;
}

header {
  background-color: #add790;
  grid-column: 1/3;
  grid-row: 1;
  text-align: center;
}

main {
  grid-column: 1;
  grid-row: 2;
  display: flex;
  align-items: stretch;
}

nav {
  background-color: orange;
  padding: 1em;
  min-height: 0;
}

#divMain {
  padding: 1em;
}

<header>
  <h1>Title</h1>
</header>
<main>
  <nav>
    <p>Navigation</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
  </nav>
  <div id='divMain'>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
  </div>
</main>

Set a height to each container that needs the scrollbar and use overflow-y: scroll — m4n0
– m4n0, Commented Oct 25, 2019 at 17:21
@ManojKumar The height of each container is the height of the screen minus the height of the header, which is dynamic, depending on the user's font size. So, how to accomplish what you suggest? — Rodrigo
– Rodrigo, Commented Oct 25, 2019 at 19:24
Using JavaScript. CSS cannot detect user font size or browser height. — m4n0
– m4n0, Commented Oct 26, 2019 at 8:21

Iqbal Kabir · Accepted Answer · 2022-04-01 06:03:38Z

Accepted answer is not a css-grid based solution. So my answer is here.

body {
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  margin: 0;
  display: grid;
  grid-template-columns: 200px 1fr;
  grid-template-rows: auto 1fr;
}

header {
  grid-column: 1/3;
  background-color: #add790;
  text-align: center;
}

main {
  overflow-y: auto;
  padding: 1em;
}

nav {
  overflow-y: auto;
  padding: 1em;
  background-color: orange;
}

<header>
  <h1>Title</h1>
</header>
<nav>
  <p>Navigation</p>
  <p>Some text.</p>
  <p>Some text.</p>
  <p>Some text.</p>
  <p>Some text.</p>
  <p>Some text.</p>
  <p>Some text.</p>
  <p>Some text.</p>
  <p>Some text.</p>
  <p>Some text.</p>
  <p>Some text.</p>
  <p>Some text.</p>
  <p>Some text.</p>
  <p>Some text.</p>
  <p>Some text.</p>
  <p>Some text.</p>
  <p>Some text.</p>
  <p>Some text.</p>
</nav>
<main id='divMain'>
  <p>Here too there should be a local scrollbar.</p>
  <p>Here too there should be a local scrollbar.</p>
  <p>Here too there should be a local scrollbar.</p>
  <p>Here too there should be a local scrollbar.</p>
  <p>Here too there should be a local scrollbar.</p>
  <p>Here too there should be a local scrollbar.</p>
  <p>Here too there should be a local scrollbar.</p>
  <p>Here too there should be a local scrollbar.</p>
</main>

Rodrigo · Accepted Answer · 2019-10-28 16:03:19Z

html,body {
  height: 100%;
  margin: 0;
}

body {
  display: flex;
  flex-direction: column;
}

header {
  background-color: #add790;
  text-align: center;
}

main {
  flex: 1;
  display: flex;
  min-height: 0;
}

nav {
  background-color: orange;
  width: 20%;
  overflow: auto;
  padding: 1em;
}

article {
  width: 80%;
  overflow: auto;
  padding: 1em;
}

<header>
  <h1>Title</h1>
</header>
<main>
  <nav>
    <p>Navigation</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
    <p>Some text.</p>
  </nav>
  <article>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
    <p>Here too there should be a local scrollbar.</p>
  </article>
</main>

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