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CSS References

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CSS Properties

accent-color align-content align-items align-self all animation animation-delay animation-direction animation-duration animation-fill-mode animation-iteration-count animation-name animation-play-state animation-timing-function aspect-ratio backdrop-filter backface-visibility background background-attachment background-blend-mode background-clip background-color background-image background-origin background-position background-position-x background-position-y background-repeat background-size block-size border border-block border-block-color border-block-end border-block-end-color border-block-end-style border-block-end-width border-block-start border-block-start-color border-block-start-style border-block-start-width border-block-style border-block-width border-bottom border-bottom-color border-bottom-left-radius border-bottom-right-radius border-bottom-style border-bottom-width border-collapse border-color border-end-end-radius border-end-start-radius border-image border-image-outset border-image-repeat border-image-slice border-image-source border-image-width border-inline border-inline-color border-inline-end border-inline-end-color border-inline-end-style border-inline-end-width border-inline-start border-inline-start-color border-inline-start-style border-inline-start-width border-inline-style border-inline-width border-left border-left-color border-left-style border-left-width border-radius border-right border-right-color border-right-style border-right-width border-spacing border-start-end-radius border-start-start-radius border-style border-top border-top-color border-top-left-radius border-top-right-radius border-top-style border-top-width border-width bottom box-decoration-break box-reflect box-shadow box-sizing break-after break-before break-inside caption-side caret-color @charset clear clip clip-path color color-scheme column-count column-fill column-gap column-rule column-rule-color column-rule-style column-rule-width column-span column-width columns content counter-increment counter-reset counter-set cursor direction display empty-cells filter flex flex-basis flex-direction flex-flow flex-grow flex-shrink flex-wrap float font @font-face font-family font-feature-settings font-kerning font-size font-size-adjust font-stretch font-style font-variant font-variant-caps font-weight gap grid grid-area grid-auto-columns grid-auto-flow grid-auto-rows grid-column grid-column-end grid-column-start grid-row grid-row-end grid-row-start grid-template grid-template-areas grid-template-columns grid-template-rows hanging-punctuation height hyphens hyphenate-character image-rendering @import initial-letter inline-size inset inset-block inset-block-end inset-block-start inset-inline inset-inline-end inset-inline-start isolation justify-content justify-items justify-self @keyframes left letter-spacing line-height list-style list-style-image list-style-position list-style-type margin margin-block margin-block-end margin-block-start margin-bottom margin-inline margin-inline-end margin-inline-start margin-left margin-right margin-top marker marker-end marker-mid marker-start mask mask-clip mask-composite mask-image mask-mode mask-origin mask-position mask-repeat mask-size mask-type max-block-size max-height max-inline-size max-width @media min-block-size min-inline-size min-height min-width mix-blend-mode object-fit object-position offset offset-anchor offset-distance offset-path offset-position offset-rotate opacity order orphans outline outline-color outline-offset outline-style outline-width overflow overflow-anchor overflow-wrap overflow-x overflow-y overscroll-behavior overscroll-behavior-block overscroll-behavior-inline overscroll-behavior-x overscroll-behavior-y padding padding-block padding-block-end padding-block-start padding-bottom padding-inline padding-inline-end padding-inline-start padding-left padding-right padding-top page-break-after page-break-before page-break-inside paint-order perspective perspective-origin place-content place-items place-self pointer-events position @property quotes resize right rotate row-gap scale scroll-behavior scroll-margin scroll-margin-block scroll-margin-block-end scroll-margin-block-start scroll-margin-bottom scroll-margin-inline scroll-margin-inline-end scroll-margin-inline-start scroll-margin-left scroll-margin-right scroll-margin-top scroll-padding scroll-padding-block scroll-padding-block-end scroll-padding-block-start scroll-padding-bottom scroll-padding-inline scroll-padding-inline-end scroll-padding-inline-start scroll-padding-left scroll-padding-right scroll-padding-top scroll-snap-align scroll-snap-stop scroll-snap-type scrollbar-color tab-size table-layout text-align text-align-last text-decoration text-decoration-color text-decoration-line text-decoration-style text-decoration-thickness text-emphasis text-emphasis-color text-emphasis-position text-emphasis-style text-indent text-justify text-orientation text-overflow text-shadow text-transform text-underline-offset text-underline-position top transform transform-origin transform-style transition transition-delay transition-duration transition-property transition-timing-function translate unicode-bidi user-select vertical-align visibility white-space widows width word-break word-spacing word-wrap writing-mode z-index zoom



CSS scroll-margin-block-start Property


Example

Set scroll margin to 20px between the snap position and the container in block direction:

div {
  scroll-margin-block-start: 20px;
}
Try it Yourself »

More "Try it Yourself" examples below.


Definition and Usage

The scroll-margin-block-start property specifies the distance in block direction, between the snap position and the container .

This means that when you stop scrolling, the scrolling will quickly adjust and stop at a specified distance in block direction, between the snap position at the start of the child element and the container.

Block direction is where the next line is put compared to the position of an existing line, and this is also how tags with CSS display: block; like <p> and <div> tags are laid out on a page. Block direction is dependent on the written language, i.e. Mongolian where new lines are laid out left to right which makes block direction left to right, while pages in English have a downward block direction. Block direction can be defined with CSS property writing-mode.

Snap position is the position on the child element where it snaps into place in the container when you stop scrolling.

Note: This property only works if the scroll-snap-align property is set to 'start' for the block direction.

To see the effect from the scroll-margin-block-start property, the scroll-margin-block-start and scroll-snap-align properties must be set on the child elements, and the scroll-snap-type property must be set on the parent element.

The CSS scroll-margin-inline and scroll-margin-block properties are very similar to CSS properties scroll-margin-top, scroll-margin-bottom, scroll-margin-left and scroll-margin-right, but the scroll-margin-block and scroll-margin-inline properties are dependent on block and line directions.

Default value: 0
Inherited: no
Animatable: no. Read about animatable
Version: CSS3
JavaScript syntax: object.style.scrollMarginBlockStart="20px" Try it

Browser Support

The numbers in the table specify the first browser version that fully supports the property.

Property
scroll-margin-block-start 69.0 79.0 68.0 14.1 56.0


CSS Syntax

scroll-margin-block-start: 0|value|initial|inherit;

Property Values

Value Description
0 Default. The element's default scroll-margin distance.
length Specifies distance in px, pt, cm, etc. Negative values are allowed. Read about length units
initial Sets this property to its default value. Read about initial
inherit Inherits this property from its parent element. Read about inherit

More Examples

Example

With the writing-mode property value of a <div> element set to vertical-rl, the block direction is right to left. The result is that the start of the element is moved from top to right side:

div {
  scroll-margin-block-start: 50px;
  writing-mode: vertical-rl;
}
Try it Yourself »

Related Pages

CSS scroll-snap-align property: CSS Scroll-snap-align property

CSS scroll-snap-type property: CSS Scroll-snap-type property

CSS writing-mode property: CSS Writing-mode property


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