style fontSize 属性

将元素的字体大小设置为"x-large"：

document.getElementById("demo").style.fontSize = "x-large";

描述

fontSize 属性设置或返回文本的字体大小。

Property
fontSize	Yes	Yes	Yes	Yes	Yes

返回 fontSize 属性：

object.style.fontSize

设置字体大小属性：

object.style.fontSize = "value|initial|inherit"

Value	Description
xx-small x-small small medium large x-large xx-large	Sets the size of the font to different fixed sizes, from xx-small to xx-large
smaller	Decreases the font-size by one relative unit
larger	Increases the font-size by one relative unit
length	Defines the font-size in length units
%	Sets the font-size to a % of the parent element's font size
initial	Sets this property to its default value. Read about initial
inherit	Inherits this property from its parent element. Read about inherit