Web Promotion - Web Development and Design Foundations with XHTML - page 521

The code for the inline frame used to create this effect is as follows:

<iframe src="trillium.html" title="Trillium Wild Flower"
height="160" name="flower" width="350">
Description of the lovely Spring wild flower, the
<a href="trillium.html" target="_blank">Trillium</a></iframe>
As shown, an inline frame is created using the <iframe> element. The <iframe> element
is a container tag. It is always used with its closing </iframe> tag. Any content that
should be displayed if the browser does not support inline frames (such as a text descrip-
tion or link to the actual page) should be placed between the tags. The <iframe> tag con-
figures an area on a Web page that can be used to display a different Web page document.
This inline area is 150 pixels high and 300 pixels wide by default. The height and width
attributes can be used to configure the exact dimensions. In the example code, the align
attribute was used to align the inline frame to the right of the text on the Web page. The
name attribute was used so that the inline frame could be targeted by links. Table 13.2
lists attributes for <iframe> tags. Commonly used attributes are shown in bold.

Table 13.2 <iframe> tag attributes

Attribute Values Purpose

right, center, left (default)

Specifies the horizontal alignment of the inline frame
(deprecated—use CSS instead)

align

0 indicates no visible borders
1 indicates borders display (default)

Determines whether borders should be displayed
around this inline frame

frameborder

Number of pixels or percentage Gives height of the inline frame

height

Alphanumeric, no spaces; the value
must be unique and not used for other id
values on the same XHTML document

Provides a unique identifier for the inline frame

id

Provides a detailed text description of
the frame; may be accessed by assistive
technologies

Gives URL of Web page with detailed description of
the contents of the inline frame

longdesc

marginheight Number of pixels

Configures the top and bottom margins of the inline
frame

Number of pixels Configures the width of the right and left margins of

an inline frame

marginwidth

name Alphanumeric, no spaces, begin with a

letter

Configures the name of the inline frame; required
when using the target attribute to configure hyperlinks
(deprecated in XHTML but is used to provide back-
ward compatibility with browsers that support HTML)

yes indicates that scrollbars are always
present; no indicates that scrollbars are
never displayed; auto indicates that
scrollbars appear when needed (default)

Determines whether scrollbars will appear if the
document displayed is larger than the size of the
inline frame

scrolling

Valid file name of a Web page document
(required)

Configures the name of the file to be displayed in the
inline frame

src

Text phrase that describes the inline
frame

Configures the title of the inline frame; can be
accessed by screen readers and is recommended by
the W3C to improve accessibility

title

Number of pixels or percentage Specifies width of the inline frame

width