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 by0px
if not set. The difference betweenclip
andhidden
is that theclip
keyword also forbids all scrolling, including programmatic scrolling. No new formatting context is created. To establish a formatting context, useoverflow: 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 withvisible
, 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
See also
- clip, display, text-overflow, white-space
- CSS overflow module
- CSS building blocks: Overflowing content