Set the width of a <button> element:
document.getElementById("myBtn").style.width = "300px";
<!DOCTYPE html> <html> <body> <button type="button" id="myBtn" onclick="myFunction()">Change the width of this button</button> <script> function myFunction() {/*from w w w. j a va2s .com*/ document.getElementById("myBtn").style.width = "300px"; } </script> </body> </html>
The width property sets or gets the width an element.
The width property has effect only on block-level elements or on elements with absolute or fixed position.
The overflowing content can be manipulated with the overflow property.
Use the height property to set or return the height of an element.
Property Values
Value | Description |
---|---|
auto | The browser sets the width. default |
length | Defines the width in length units |
% | Defines the width in % of the parent element |
initial | Sets this property to its default value. |
inherit | Inherits this property from its parent element. |
The width property return a String representing the width of an element.