border-top-width Attribute | borderTopWidth Property

Sets or retrieves the width of the top border of the object .

Syntax

HTML Scripting

{ border-top-width : sWidth }

object . style.borderTopWidth [ = sWidth ]

Possible Values

sWidth

Variant that specifies or receives one of the following values.

medium	Default.
thin	Less than the default width.
thick	Greater than the default width.
width	Floating-point number, followed by an absolute units designator ( cm , mm , in , pt , pc , or px ) or a relative units designator ( em or ex ). For more information about the supported length units, see CSS Length Units Reference .

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

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 position or layout to use this property. Element layout is set by providing a value for the height property or the width property.

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

<HEAD>
<STYLE>
TD { border-top-width :3mm }
.changeborder1 { border-top-width :1cm }
</STYLE>
</HEAD>
<BODY>
<TABLE BORDER>
<TR> <TD onclick="this.className='changeborder1'" ondblclick="this.className=''"> <IMG src="sphere.jpg"> </TD> </TR>
</TABLE>

This example uses inline script to change the width of the top border to 1 centimeter when a mouse click occurs.

Standards Information

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

Applies To

[ Object Name ] Platform Version

Win16:
Win32:
Windows CE:
Unix:
Mac:

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

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