Header sticks on top while the Y-axis scroll, but behaves naturally on the X-axis scroll

Created Nov 17, 2020 Edited Nov 17, 2020

Viewed 56

https://codepen.io/GeorgeKutateladze/pen/OJXGNMW?editors=0100

How can I make the first row with blue squares behave sticky to the top while scrolling Y-axis, but behave naturally on the X-axis scroll? I read the documentation and several articles about sticky, but I couldn't figure out how to properly apply it in this situation.

.grid {
  display: grid;
  grid-template-rows: repeat(9, 1fr);
  grid-gap: 5px;
  overflow: auto;
}

.row {
  height: 100px;
  display: grid;
  grid-template-columns: repeat(20, 1fr);
  grid-template-row: 100px;
  grid-gap: 5px;
}

.box {
  width: 100px;
  height: auto;
  border: 1px dotted crimson;
}

.first-row .box {
  border: 1px dotted blue;
}

.first-row {
  position: sticky;
  top: 0;
}

<div class="grid">
  <div class="row first-row">
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
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    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
  </div>
  <div class="row">
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
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    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
  </div>
  <div class="row">
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
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    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
  </div>
  <div class="row">
    <div class="box"></div>
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    <div class="box"></div>
  </div>
  <div class="row">
    <div class="box"></div>
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    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
  </div>
  <div class="row">
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
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    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
  </div>
  <div class="row">
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
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    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
  </div>
  <div class="row">
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
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    <div class="box"></div>
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    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
  </div>
  <div class="row">
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
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    <div class="box"></div>
    <div class="box"></div>
  </div>
</div>

You should use the scroll on the grid. Remove scrolling from html, body and add height: 100vh to .grid.

html,
body {
  overflow: hidden;
}

.grid {
  display: grid;
  grid-template-rows: repeat(9, 1fr);
  grid-gap: 5px;
  overflow: auto;
  height: 100vh;
}

.row {
  height: 100px;
  display: grid;
  grid-template-columns: repeat(20, 1fr);
  grid-template-rows: 100px;
  grid-gap: 5px;
}

.box {
  width: 100px;
  height: auto;
  border: 1px dotted crimson;
}

.first-row .box {
  border: 1px dotted blue;
}

.first-row {
  position: sticky;
  top: 0;
}

<div class="grid">
  <div class="row first-row">
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
    <div class="box"></div>
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  </div>
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</div>

Header sticks on top while the Y-axis scroll, but behaves naturally on the X-axis scroll

1 Answers