Index_X

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X

x-height measurement, using with CSS1, 292

XForms, rise of, 402-403

XHTML 1.0 frameset DTD, code for, 878-898

XHTML 1.0 strict DTD, code for, 862-878

XHTML 1.0 transitional DTD, example of, 55-56, 842-862

XHTML 1.1 specification Web address, 578

XHTML Basic specification Web address, 578

XHTML documents

adding styles to, 270-271

forming valid types of, 22

hiding script markup in, 438-439

including scripts in, 436-445

including VBScript in, 435-436

sample tree structure of, 285-286

specifying scripting languages for, 440

structure and inheritance of, 284-288

using event handler attributes with, 441-445

using linked scripts with, 441

validating, 45-46

XHTML (Extensible Hypertext Markup Language)

case sensitivity of, 19-20

combining with XML, 561-565

content model of, 20

development of, 8

DTD syntax for, 10-11

enforcing rules for, 22-23

events defined in, 442-443

versus HTML 4, 5-6

impact on public Web, 26

myths about, 25-26

table specifications defined for, 222-223

versions of, 12, 578-579

Web address, 577-579

XML application languages

RSS (Really Simple Syndication), 572-573

SOAP (Simple Object Access Protocol), 570-572

SVG (Scalable Vector Graphics), 569-570

WML (Wireless Markup Language), 565-568

XML Data Islands in Internet Explorer, overview of, 563-565

XML documents, displaying with CSS, 560-561

XML (Extensible Markup Language). See also valid XML; well- formed XML

combining with XHTML, 561-565

displaying, 555-561

importance of, 547

as meta-language , 549

predicting future of, 573-574

relationship to HTML, 8

rules for, 550-551

and SGML, 548-549

transforming to HTML, 555-560

Web address for, 565

XML keywords, overview of, 840

<xml> (XML Data Island) element, overview of, 563-565, 732-733

xmlns attribute, example of, 561

<xmp> (example) element, overview of, 734

XSL

transforming XML to HTML with, 555-560

Web address for, 560

XSL style sheet, example of, 558-559

XSLT (eXtensible Style Sheet Transformations), purpose of, 555

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