overflow-y
==========

Baseline 2022
-------------

Newly availableSince September 2022, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

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The **`overflow-y`** CSS property sets what shows when content overflows a block-level element's top and bottom edges. This may be nothing, a scroll bar, or the overflow content. This property may also be set by using the `overflow` shorthand property.

Try it
------

Syntax
------


```css
/\* Keyword values \*/
overflow-y: visible;
overflow-y: hidden;
overflow-y: clip;
overflow-y: scroll;
overflow-y: auto;

/\* Global values \*/
overflow-y: inherit;
overflow-y: initial;
overflow-y: revert;
overflow-y: revert-layer;
overflow-y: unset;
```


The `overflow-y` property is specified as a single `<overflow>` keyword value.

If `overflow-x` is `hidden`, `scroll`, or `auto` and the `overflow-y` property is `visible` (default), the value will be implicitly computed as `auto`.

### Values

`visible`

Overflow content is not clipped and may be visible outside the element's padding box at the top and bottom edges. The element box is not a scroll container.

`hidden`

Overflow content is clipped if necessary to fit vertically in the elements' padding box. No scroll bars are provided.

`clip`

Overflow content is clipped at the element's *overflow clip edge* that is defined using the `overflow-clip-margin` property. As a result, content overflows the element's padding box by the `<length>` value of `overflow-clip-margin` or by `0px` if not set. The difference between `clip` and `hidden` is that the `clip` keyword also forbids all scrolling, including programmatic scrolling. No new formatting context is created. To establish a formatting context, use `overflow: clip` along with `display: flow-root`. The element box is not a scroll container.

`scroll`

Overflow content is clipped if necessary to fit vertically inside the element's padding box. Browsers display scroll bars in the vertical direction whether or not any content is actually clipped. (This prevents scroll bars from appearing or disappearing when the content changes.) Printers may still print overflowing content.

`auto`

Overflow content is clipped at the element's padding box, and overflow content can be scrolled into view. Unlike `scroll`, user agents display scroll bars *only if* the content is overflowing, hiding scroll bars by default. If content fits inside the element's padding box, it looks the same as with `visible`, but still establishes a new block-formatting context.


**Note:** The keyword value `overlay` is a legacy value alias for `auto`. With `overlay`, the scroll bars are drawn on top of the content instead of taking up space.

Formal definition
-----------------

|  |  |
| --- | --- |
| Initial value | `visible` |
| Applies to | Block-containers, flex containers, and grid containers |
| Inherited | no |
| Computed value | as specified, except with `visible`/`clip` computing to `auto`/`hidden` respectively if one of `overflow-x` or `overflow-y` is neither `visible` nor clip |
| Animation type | discrete |

Formal syntax
-------------
```

overflow-y =   
  visible  |  
  hidden   |  
  clip     |  
  scroll   |  
  auto       
  
```

Examples
--------

### Setting overflow-y behavior

#### HTML


```html
<ul>
  <li>
    <code>overflow-y:hidden</code> — hides the text outside the box
    <div id="div1">
      Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
      tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim
      veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea
      commodo consequat. Duis aute irure dolor in reprehenderit in voluptate
      velit esse cillum dolore eu fugiat nulla pariatur.
    </div>
  </li>

  <li>
    <code>overflow-y:scroll</code> — always adds a scrollbar
    <div id="div2">
      Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
      tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim
      veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea
      commodo consequat. Duis aute irure dolor in reprehenderit in voluptate
      velit esse cillum dolore eu fugiat nulla pariatur.
    </div>
  </li>

  <li>
    <code>overflow-y:visible</code> — displays the text outside the box if
    needed
    <div id="div3">
      Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
      tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim
      veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea
      commodo consequat. Duis aute irure dolor in reprehenderit in voluptate
      velit esse cillum dolore eu fugiat nulla pariatur.
    </div>
  </li>

  <li>
    <code>overflow-y:auto</code> — equivalent to <code>scroll</code>
    on most browsers
    <div id="div4">
      Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
      tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim
      veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea
      commodo consequat. Duis aute irure dolor in reprehenderit in voluptate
      velit esse cillum dolore eu fugiat nulla pariatur.
    </div>
  </li>
</ul>
```


#### CSS


```css
div {
  border: 1px solid black;
  width: 250px;
  height: 100px;
}

#div1 {
  overflow-y: hidden;
  margin-bottom: 12px;
}
#div2 {
  overflow-y: scroll;
  margin-bottom: 12px;
}
#div3 {
  overflow-y: visible;
  margin-bottom: 120px;
}
#div4 {
  overflow-y: auto;
  margin-bottom: 120px;
}
```


#### Result

Specifications
--------------

| Specification |
| --- |
| CSS Overflow Module Level 3 # overflow-properties |

Browser compatibility
---------------------

BCD tables only load in the browser with JavaScript enabled. Enable JavaScript to view data.

See also
--------

* `clip`, `display`, `text-overflow`, `white-space`
* CSS overflow module
* CSS building blocks: Overflowing content