CSS Property: font-size
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The CSS (CSS1) font-size property indicates the size
of the font to be used for an element.
Valid property values
(other than inherit
and initial) are:
|
Value
|
Description
|
|
length
|
Fixed size as a CSS length (px, cm, …)
|
|
%
|
Set as a percentage of
parent element’s font size
|
|
large
|
Large size
|
|
larger
|
Larger size than parent
element’s font size
|
|
medium
|
(default value). Medium
size
|
|
small
|
Small size
|
|
smaller
|
Smaller size than
parent element’s font size
|
|
x-large
|
X-large size
|
|
xx-large
|
XX-large size
|
|
x-small
|
X-small size
|
|
xx-small
|
XX-small size
|
|
Default Value:
|
medium
|
|
JavaScript syntax:
|
e.g. object.style.fontSize="12px"
|
|
Inherited:
|
Yes
|
|
Animatable:
|
Yes
|
EXAMPLE:
HTML USED IN THIS EXAMPLE:
<!DOCTYPE html>
<html> <!-- Copyright (c) Nematrian Limited 2018 -->
<head>
<style>
div {width: 100px; border: 1px dotted black;}
.x1 {font-size: x-large;}
</style>
</head>
<body>
Element with default property<br>
<div>abcdefgh</div><br>
Property set using in-file HTML style<br>
<div class="x1">abcdefgh</div><br>
Property set using JavaScript<br>
<div id="x2">abcdefgh</div>
<script>
document.getElementById("x2").style.fontSize = "x-large";
</script>
</body>
</html>
|
FUNCTION THAT MAY ASSIST IN TESTING WHETHER FEATURE IS SUPPORTED:
function isSupportedCSSPropertyFontSize() {
var x = document.createElement("DIV"); x.style.fontSize = "x-large"; return (window.getComputedStyle(x, null).fontSize == "x-large");
} |
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