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font-weight Attribute | fontWeight参数属性

DHTML文档教程

Sets or retrieves the weight of the font of the object.

dhtml语法

HTML { font-weight : sWeight }
Scriptingobject.style.fontWeight [ = sWeight ]

DHTML可能的值

sWeightString that specifies or receives one of the following values.
normalDefault. Font is normal.
boldFont is bold.
bolderFont is heavier than regular bold.
lighterFont is lighter than normal.
100Font is at least as light as the 200 weight.
200Font is at least as bold as the 100 weight and at least as light as the 300 weight.
300Font is at least as bold as the 200 weight and at least as light as the 400 weight.
400Font is normal.
500Font is at least as bold as the 400 weight and at least as light as the 600 weight.
600Font is at least as bold as the 500 weight and at least as light as the 700 weight.
700Font is bold.
800Font is at least as bold as the 700 weight and at least as light as the 900 weight.
900Font is at least as bold as the 800 weight.

The property is read/write for all objects except the following, for which it is read-only: currentStyle. The property has a default value of normal. The Cascading Style Sheets (CSS) attribute is inherited.

Expressions can be used in place of the preceding value(s), as of Microsoft® Internet Explorer 5. For more information, see about dynamic properties.

remarks

keywords for font-weight values are mapped to specific font variations depending on the fonts that are installed on the user's computer. in many cases, the user cannot see the difference between different font-weight settings because the system chooses the closest match.

setting the font-weight to 400 is equivalent to normal, and to 700 is equivalent to bold. an font-weight of bolder or lighter is interpreted relative to the parent object's weight. a value of bolder for text whose parent is normal sets the text to bold.

microsoft® internet explorer 4.0 supports only normal and bold.

internet explorer 3.0 supports the font-weight attribute through the font attribute.

Examples

The following examples use the font-weight attribute and the fontWeight property to change the font weight.

This example uses li as a selector in an embedded (global) style sheet to set the font weight to bolder.

<STYLE>
LI { font-weight:bolder }
</STYLE>
This feature requires Microsoft® Internet Explorer 4.0 or later. Click the following icon to install the latest version. Then reload this page to view the sample.

This example uses inline scripting to set the font weight to bolder when an onmouseover event occurs.

<p style="font-size:14" onmouseover="this.style.fontweight='bolder'">
this feature requires microsoft® internet explorer 4.0 or later. click the following icon to install the latest version. then reload this page to view the sample.

是否符合公共标准

This property is defined in Cascading Style Sheets (CSS), Level 1 (CSS1) Non-Microsoft link.

Applies To

A, ADDRESS, B, BIG, BLOCKQUOTE, BODY, BUTTON, CAPTION, CENTER, CITE, CODE, COL, COLGROUP, currentStyle, CUSTOM, DD, defaults, DFN, DIR, DIV, DL, DT, EM, FIELDSET, FORM, hn, HTML, I, IMG, INPUT type=button, INPUT type=checkbox, INPUT type=file, INPUT type=image, INPUT type=password, INPUT type=radio, INPUT type=reset, INPUT type=submit, INPUT type=text, ISINDEX, KBD, LABEL, LEGEND, LI, LISTING, MARQUEE, MENU, OL, P, PLAINTEXT, PRE, runtimeStyle, S, SAMP, SELECT, SMALL, SPAN, STRIKE, STRONG, style, SUB, SUP, TABLE, TBODY, TD, TEXTAREA, TFOOT, TH, THEAD, TR, TT, U, UL, VAR, XMP

更多语法参考

font