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HTML onscroll Event Attribute
The HTML onscroll event attribute is triggered when an HTML element is scrolled by using its scrollbar in an HTML document.
Syntax
Following is the syntax −
<tagname onscroll=”script”></tagname>
Let us see an example of HTML onscroll event Attribute −
Example
<!DOCTYPE html> <html> <head> <style> body { color: #000; height: 100vh; background: linear-gradient(62deg, #FBAB7E 0%, #F7CE68 100%) no-repeat; text-align: center; padding: 20px; } .box-para { border: 2px solid #fff; padding: 10px; width: 200px; height: 200px; overflow: scroll; margin: 1rem auto; } </style> </head> <body> <h1>HTML onscroll Event Attribute Demo</h1> <p onscroll="scrollFn()" class="box-para"> This is a paragraph element with some dummy text. This is a paragraph element with some dummy text. This is a paragraph element with some dummy text. This is a paragraph element with some dummy text. This is a paragraph element with some dummy text. This is a paragraph element with some dummy text. This is a paragraph element with some dummy text. This is a paragraph element with some dummy text. This is a paragraph element with some dummy text. This is a paragraph element with some dummy text. This is a paragraph element with some dummy text. This is a paragraph element with some dummy text. This is a paragraph element with some dummy text. This is a paragraph element with some dummy text. This is a paragraph element with some dummy text.</p> <p>Scroll above paragraph text to increase its font size</p> <script> function scrollFn() { document.querySelector(".box-para").style.fontSize = "1.5rem"; } </script> </body> </html>
Output
Scroll through the paragraph content to observe how onscroll event attribute works −
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