CSS calc() Function
Example
Use calc() to calculate the width of a <div> element:
#div1 {
position: absolute;
left: 50px;
width: calc(100% - 100px);
border: 1px solid black;
background-color: yellow;
padding: 5px;
text-align: center;
}
Try it Yourself »
Definition and Usage
The calc() function performs a calculation to be used as the property value.
| Version: | CSS3 |
|---|
Browser Support
The numbers in the table specify the first browser version that fully supports the function.
Numbers followed by -webkit-, -moz-, or -o- specify the first version that worked with a prefix.
| Function | |||||
|---|---|---|---|---|---|
| calc() | 26.0 19.0 -webkit- |
9.0 | 16.0 4.0 -moz- |
7.0 6.0 -webkit- |
15.0 |
CSS Syntax
calc(expression)
| Value | Description |
|---|---|
| expression | Required. A mathematical expression. The result will be used as the value. The following operators can be used: + - * / |
