Javascript DOM CSS Style overflowY Property

Introduction

Scroll vertically if the text overflows the element's content area:

document.getElementById("myDIV").style.overflowY = "scroll";

Click the button to change the overflowY property of the DIV element:

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<!DOCTYPE html>
<html>
<head>
<style>
#myDIV {// w w w . ja va 2 s  .c  o  m
  border: 1px solid black;
  background-color: lightblue;
  width: 200px;
  height: 210px;
}
</style>
</head>
<body>


<button onclick="myFunction()">Test</button>

<div id="myDIV">
Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi. Nam liber tempor cum soluta nobis eleifend option congue nihil imperdiet doming id quod mazim placerat facer possim assum. Typi non habent claritatem insitam; est usus legentis in iis qui facit eorum claritatem. Investigationes demonstraverunt lectores legere me lius quod ii legunt saepius.
</div>

<script>
function myFunction() {
  document.getElementById("myDIV").style.overflowY = "scroll";
}
</script>

</body>
</html>

The overflowY property specifies what to do with the top/bottom edges of the content - if it overflows the element's content area.

Use the overflowX property to determine clipping at the left and right edges.

Property Values

Value	Description
visible	`Default`. The content is not clipped, and it may be rendered outside the content box
hidden	content clipped and no scrolling mechanism is provided
scroll	content clipped and a scrolling mechanism is provided
auto	Should cause a scrolling mechanism to be provided for overflowing boxes
initial	Sets this property to its default value.
inherit	Inherits this property from its parent element.

The overflowY property return a String representing the overflow-y property of an element.

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