border-top Attribute | borderTop Property

DHTML, HTML, & CSS

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DHTML Properties

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border-top Attribute | borderTop Property

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

Syntax

HTML { border-top: sTop }

Scripting object.style.borderTop [ = sTop ]

HTML	{ border-top: sTop }
Scripting	object.style.borderTop [ = sTop ]

Possible Values

sTop String that specifies one or more of the following space-delimited values:

width Any of the range of width values available to the borderTopWidth property.

style Any of the range of style values available to the borderTopStyle property.

color Any of the range of color values available to the borderTopColor property.

The property is read/write with a default value of medium none; 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 dynamic properties.

Remarks

The borderTop property is a composite property that sets the width, color, and style values for the top border of an object.

All individual border properties not set by the composite borderTop property are set to their default values. For example, the default value for width is medium.

If a color is not specified, the text color is used.

For more information about supported colors, see the Color Table.

To use this property, inline elements must have an absolute position or layout. Element layout is set by providing a value for the height property or the width property.

Example

The following examples use the border-top attribute and the borderTop property to specify the composite properties.
This example uses a call to an embedded (global) style sheet to change the attributes of the top border when an onmouseover event occurs.
Sample Code
<HEAD>
<STYLE>
    TD 	{ border-top:0.5cm solid yellow }
    .change { border-top:0.5cm groove pink }
</STYLE>
</HEAD>
<BODY>
<TABLE>
<TR>
    <TD onmouseover="this.className='change'"
        onmouseout="this.className=''">
        <IMG src="sphere.jpg">
    </TD>
</TR>
</TABLE>
This feature requires Internet Explorer 4.0 or later. Click the icon below to install the latest version. Then reload this page to view the sample.

This example uses inline scripting to change the top border when an onmouseover event occurs.
<TD onmouseover="this.style.borderTop='0.3cm groove yellow'">
This feature requires Internet Explorer 4.0 or later. Click the icon below to install the latest version. Then reload this page to view the sample.

Applies To

[ Object Name ]

Platform Version

Win16:

Win32:

Mac:

Unix:

WinCE:

Version data is listed when the mouse hovers over a link, or the link has focus.

BLOCKQUOTE, BODY, BUTTON, CAPTION, CENTER, custom, DD, DIR, DIV, DL, DT, EMBED, FIELDSET, FORM, Hn, HR, 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, ISINDEX, LI, LISTING, MARQUEE, MENU, OBJECT, OL, P, PLAINTEXT, PRE, runtimeStyle, SPAN, style, TABLE, TD, TEXTAREA, TH, UL, XMP