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border-width Attribute | borderWidth参数属性

DHTML文档教程

Sets or retrieves the width of the left, right, top, and bottom borders of the object.

dhtml语法

HTML { border-width : sWidth }
Scriptingobject.style.borderWidth [ = sWidth ]

DHTML可能的值

sWidthString that specifies or receives up to four of the following values:
mediumDefault. ?/TD>
thinWidth less than the default.
thickWidth greater than the default.
widthWidth consisting of a floating-point number, followed by an absolute units designator (cm, mm, in, pt, pc, or px) or a relative units designator (em or ex).

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 medium. The Cascading Style Sheets (CSS) attribute is not 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

up to four different widths can be specified, in the following order: top, right, bottom, left. if one width is specified, it is used for all four sides. if two widths are specified, the first is used for the top and bottom borders, and the second is used for left and right borders. if three widths are specified, they are used for top, right/left, and bottom borders, respectively.

as of microsoft® internet explorer 5.5, this property applies to inline elements. with earlier versions of internet explorer, inline elements must have an absolute?a href="../properties/position.html">position or layout to use this property. element layout is set by providing a value for the height property or the width property.

the borderwidth property does not render if the borderstyle property is set to none.

Examples

The following examples use the border-width attribute and the borderWidth property to specify the width of the border.

This example uses a call to an embedded (global) style sheet to change the width of the border to 1 centimeter when a mouse click occurs.

<HEAD>
<STYLE>
TD { border-width:3mm }
.changeborder1 { border-width:1cm }
</STYLE>
</HEAD>
<BODY>
<TABLE BORDER>
<TR>
<TD onclick="this.className='changeborder1'"
ondblclick="this.className=''">
<IMG src="sphere.jpg"></TD>
</TR>
</TABLE>
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 script to change the width of the border to 1 centimeter when a mouse click occurs.

<TD onclick="this.style.borderWidth='1cm'">
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, ACRONYM, B, BDO, BIG, BLOCKQUOTE, BODY, BUTTON, CAPTION, CENTER, CITE, CODE, currentStyle, CUSTOM, DD, defaults, DEL, DFN, DIR, DIV, DL, DT, EM, EMBED, FIELDSET, FONT, FORM, FRAME, hn, HR, I, IFRAME, 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, INS, ISINDEX, KBD, LABEL, LI, LISTING, MARQUEE, MENU, NOBR, OBJECT, OL, P, PLAINTEXT, PRE, Q, runtimeStyle, S, SAMP, SMALL, SPAN, STRIKE, STRONG, style, SUB, SUP, TABLE, TD, TEXTAREA, TH, TT, U, UL, VAR, XMP

更多语法参考

border, CSS Enhancements in Internet Explorer 6