CSS overscroll-behavior-y Property
The overscroll-behavior-y property is used to set the behavior of the browser when the vertical boundary of a scrolling area is reached. This can be used in websites where there are multiple scrolling areas and scrolling one area does not affect the page as a whole. This effect is known as scroll-chaining which can be enabled or disabled accordingly.
Syntax:
overscroll-behavior-y: auto | contain | none | initial | inherit
Property Values:
- auto: This is used to set the scrolling behavior to default on all the elements. The whole page will scroll even if the boundary of the element is reached. It is the default value.
- contain: It is used to set the scrolling behavior to default only on the element used. No scroll-chaining would occur on the neighboring scrolling areas and the elements behind will not scroll.
- none: It is used to prevent scroll-chaining on all elements. The default scroll overflow behavior is also prevented.
- initial: It is used to set the over-scroll behavior to the default value.
- inherit: It is used to set the scrolling behavior to inherit from the parent.
Example:
html
<!DOCTYPE html> < html > < head > < title > CSS | overscroll-behavior-y </ title > < style > .container { display: flex; } .main-content { width: 200px; background-color: lightgreen; } .smaller-box { overscroll-behavior-y: auto; height: 100px; width: 125px; margin: 25px; overflow-y: scroll; } </ style > </ head > < body > < h1 style = "color: green" > w3wiki </ h1 > < b >CSS | overscroll-behavior-y</ b > < p >overscroll-behavior-y: auto</ p > < div class = "container" > < div class = "main-content" > w3wiki is a computer science portal with a huge variety of well written and explained computer science and programming articles, quizzes and interview questions. The portal also has dedicated GATE preparation and competitive programming sections.< br >< br > w3wiki is a computer science portal with a huge variety of well written and explained computer science and programming articles, quizzes and interview questions. The portal also has dedicated GATE preparation and competitive programming sections. </ div > < div class = "smaller-box" > This is a smaller element that is also scrollable. The overscroll behavior can be used to control if the main content behind would scroll when this element's vertical boundary is reached. </ div > </ div > </ body > </ html > |
Output: Scrolling down on the smaller element
Example:
html
<!DOCTYPE html> < html > < head > < title > CSS | overscroll-behavior-y </ title > < style > .container { display: flex; } .main-content { width: 200px; background-color: lightgreen; } .smaller-box { overscroll-behavior-y: contain; height: 100px; width: 125px; margin: 25px; overflow-y: scroll; } </ style > </ head > < body > < h1 style = "color: green" > w3wiki </ h1 > < b >CSS | overscroll-behavior-y</ b > < p >overscroll-behavior-y: contain</ p > < div class = "container" > < div class = "main-content" > w3wiki is a computer science portal with a huge variety of well written and explained computer science and programming articles, quizzes and interview questions. The portal also has dedicated GATE preparation and competitive programming sections.< br >< br > w3wiki is a computer science portal with a huge variety of well written and explained computer science and programming articles, quizzes and interview questions. The portal also has dedicated GATE preparation and competitive programming sections. </ div > < div class = "smaller-box" > This is a smaller element that is also scrollable. The overscroll behavior can be used to control if the main content behind would scroll when this element's vertical boundary is reached. </ div > </ div > </ body > </ html > |
Output: Scrolling down on the smaller element
Example:
html
<!DOCTYPE html> < html > < head > < title > CSS | overscroll-behavior-y </ title > < style > .container { display: flex; } .main-content { width: 200px; background-color: lightgreen; } .smaller-box { overscroll-behavior-y: none; height: 100px; width: 125px; margin: 25px; overflow-y: scroll; } </ style > </ head > < body > < h1 style = "color: green" > w3wiki </ h1 > < b >CSS | overscroll-behavior-y</ b > < p >overscroll-behavior-y: none</ p > < div class = "container" > < div class = "main-content" > w3wiki is a computer science portal with a huge variety of well written and explained computer science and programming articles, quizzes and interview questions. The portal also has dedicated GATE preparation and competitive programming sections.< br >< br > w3wiki is a computer science portal with a huge variety of well written and explained computer science and programming articles, quizzes and interview questions. The portal also has dedicated GATE preparation and competitive programming sections. </ div > < div class = "smaller-box" > This is a smaller element that is also scrollable. The overscroll behavior can be used to control if the main content behind would scroll when this element's vertical boundary is reached. </ div > </ div > </ body > </ html > |
Output: Scrolling down on the smaller element
Example:
html
<!DOCTYPE html> < html > < head > < title > CSS | overscroll-behavior-y </ title > < style > .container { display: flex; } .main-content { width: 200px; background-color: lightgreen; } .smaller-box { overscroll-behavior-y: initial; height: 100px; width: 125px; margin: 25px; overflow-y: scroll; } </ style > </ head > < body > < h1 style = "color: green" > w3wiki </ h1 > < b >CSS | overscroll-behavior-y</ b > < p >overscroll-behavior-y: initial</ p > < div class = "container" > < div class = "main-content" > w3wiki is a computer science portal with a huge variety of well written and explained computer science and programming articles, quizzes and interview questions. The portal also has dedicated GATE preparation and competitive programming sections.< br >< br > w3wiki is a computer science portal with a huge variety of well written and explained computer science and programming articles, quizzes and interview questions. The portal also has dedicated GATE preparation and competitive programming sections. </ div > < div class = "smaller-box" > This is a smaller element that is also scrollable. The overscroll behavior can be used to control if the main content behind would scroll when this element's vertical boundary is reached. </ div > </ div > </ body > </ html > |
Output: Scrolling down on the smaller element
Supported Browsers: The browser supported by overscroll-behavior-y property are listed below:
- Chrome 63.0
- Firefox 59.0
- Opera 50.0
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