Change the width of the rule between columns:
document.getElementById("myDIV").style.columnRuleWidth = "10px";
Click the button to change the width of the column-rule:
<!DOCTYPE html> <html> <head> <style> #myDIV {//from w ww . j ava2 s . com column-count: 3; column-rule: 3px outset coral; } </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.columnRuleWidth = "10px"; } </script> </body> </html>
The columnRuleWidth property specifies the width of the rule between columns.
Property Values
| Value | Description |
|---|---|
| medium | Default. Defines a medium rule |
| thin | a thin rule |
| thick | a thick rule |
| length | Sets the width of the rule |
| initial | Sets this property to its default value. |
| inherit | Inherits this property from its parent element. |
The columnRuleWidth property returns a String representing the column-rule-width property of an element.