CSS - scroll-padding-block-start

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CSS scroll-padding-block-start specifies the offsets for the start edge of the scroll padding of an element in the block dimension.

Possible Values

  • <length-percentage> − A valid length or percentage value, defining an inwards offset from the corresponding edge of the scrollport.

    <auto> − An inwards offset from the corresponding edge of the scrollport determined by the user agent.

Applies to

All the scroll containers.

Syntax

scroll-padding-block-start =  auto | <length-percentage>

CSS scroll-padding-block-start - length Value

The following example demonstrates how to use the scroll-padding-block-start property to set the offset for the start edge of the scroll padding of the div element in the block dimension, using a length value (30px).

<html>
<head>
<style>
   #container {
      width: 50%;
      aspect-ratio: 3/1;
      padding: 40px 0;
      border: solid black 2px;
      overflow-x: hidden;
      overflow-y: scroll;
      scroll-snap-type: y mandatory;
      scroll-padding-block-start: 30px;
   }

   .boxA {
      background-color: rgb(234, 234, 128);
      width: 85%;
      aspect-ratio: 3/1;
   }

   .boxB {
      background-color: lightgreen;
      width: 70%;
      aspect-ratio: 4/1;
   }

   .boxA, .boxB {
      margin: 2px;
      scroll-snap-align: start none;
   }
</style>
</head>
<body>
   <h3>CSS scroll-padding-block-start property.</h3>
   <p>scroll-padding-block-start property sets the offset for the start edge of the scrollport of an element in the block dimension.</p>

   <div id="container">
      <div class="boxA"></div>
      <div class="boxB"></div>
      <div class="boxA"></div>
      <div class="boxB"></div>
      <div class="boxA"></div>
   </div>
</body>
</html>

CSS scroll-padding-block-start - percentage Value

The following example demonstrates how to use the scroll-padding-block-start property to set the offset for the start edge of the scroll padding of the div element in the block dimension, using a percentage value (60%).

<html>
<head>
<style>
   #container {
      width: 50%;
      aspect-ratio: 3/1;
      padding: 40px 0;
      border: solid black 2px;
      overflow-x: hidden;
      overflow-y: scroll;
      scroll-snap-type: y mandatory;
      scroll-padding-block-start: 60%;
   }

   .boxA {
      background-color: rgb(234, 234, 128);
      width: 85%;
      aspect-ratio: 3/1;
   }

   .boxB {
      background-color: lightgreen;
      width: 70%;
      aspect-ratio: 4/1;
   }

   .boxA, .boxB {
      margin: 2px;
      scroll-snap-align: start none;
   }
</style>
</head>
<body>
   <h3>CSS scroll-padding-block-start property.</h3>
   <p>scroll-padding-block-start property sets the offset for the start edge of the scrollport of an element in the block dimension.</p>

   <div id="container">
      <div class="boxA"></div>
      <div class="boxB"></div>
      <div class="boxA"></div>
      <div class="boxB"></div>
      <div class="boxA"></div>
   </div>
</body>
</html>

CSS scroll-padding-block-start - auto Value

The following example demonstrates how to use the scroll-padding-block-start property to set the offset for the start edge of the scroll padding of the div element in the block dimension, using a keyword value (auto).

<html>
<head>
<style>
   #container {
      width: 50%;
      aspect-ratio: 3/1;
      padding: 40px 0;
      border: solid black 2px;
      overflow-x: hidden;
      overflow-y: scroll;
      scroll-snap-type: y mandatory;
      scroll-padding-block-start: auto;
   }

   .boxA {
      background-color: rgb(234, 234, 128);
      width: 85%;
      aspect-ratio: 3/1;
   }

   .boxB {
      background-color: lightgreen;
      width: 70%;
      aspect-ratio: 4/1;
   }

   .boxA, .boxB {
      margin: 2px;
      scroll-snap-align: start none;
   }
</style>
</head>
<body>
   <h3>CSS scroll-padding-block-start property.</h3>
   <p>scroll-padding-block-start property sets the offset for the start edge of the scrollport of an element in the block dimension.</p>

   <div id="container">
      <div class="boxA"></div>
      <div class="boxB"></div>
      <div class="boxA"></div>
      <div class="boxB"></div>
      <div class="boxA"></div>
   </div>
</body>
</html>
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