Tóm Tắt
CSS
calc()
Function
❮ CSS Functions Reference
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;
}
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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: + – * /
❮ CSS Functions Reference