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Validating HTML5 Documents Online
How To Validate HTML5 Documents Online? If you have just finished a new HTML5 document, and you want to make sure that confirms with the HTML5 specification, you can use the HTML online validator at http://validator.w3.org/ . There are 3 ways you can use this validator: By URL - Specify the URL wher...
2024-03-17, 1760🔥, 0💬

Smallest Valid XHTML5 Document
What is a Smallest Valid XHTML5 Document? If you are interested to see the smallest, but valid, XHTML5 document, look at this one: <?xml version="1.0" ?> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/ xhtml"><head><ti tle>Hel...
2024-03-17, 1296🔥, 0💬

Validating XHTML5 Documents Online
How To Validate XHTML5 Documents Online? If you have just finished a new XHTML5 document, and you want to make sure that confirms with the XHTML5 specification, you can use the XHTML online validator at https://validator.nu/ . First, you need to change "Parser" field to "XML; load external entities"...
2024-03-17, 1296🔥, 0💬

Introduction of XHTML 1.0
Where to find tutorials in understanding what is XHTML 1.0? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team in understanding what is XHTML 1.0. Clear answers are provided for frequently asked questions on what is XHTML 1.0; who developed XHTML 1.0...
2024-03-17, 1187🔥, 0💬

Top Level Structure of XHTML5 Documents
What is the Top Level Structure of an XHTML5 Document? An XHTML5 document is the XML serialization format of an HTML5 document. The top level structure of an XHTML5 document consists of three parts: XML processing instruction - Provides XML version information and character set declaration. Document...
2024-03-17, 965🔥, 0💬

What Is HTML5?
What Is HTML5? HTML5 is the fifth version of the HTML standard. HTML5 was published as a W3C Recommendation on October 28, 2014. HMTL5 is a major redesign of the HTML standard to merge HTML 4, XHTML 1 and DOM Level 2 HTML into a single standard. Main features of HTML5 are: Added new markup elements:...
2024-03-07, 1196🔥, 0💬

Number of Elements Defined in HTML5?
How Many Elements Are Defined in HTML5? There are 105 elements defined in HTML5: The root element: html Document metadata elements: head, title, base, link, meta, style Section elements: body, article, section, nav, aside, h1, h2, h3, h4, h5, h6, header, footer, address Grouping elements: p, hr, pre...
2024-03-07, 1173🔥, 0💬

Introduction of HTML5
Where to find tutorials in understanding what is HTML5? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team in understanding what is HTML5. Clear answers are provided for frequently asked questions on what is HTML5; writing and viewing HTML5 documents...
2024-03-07, 1115🔥, 0💬

Smallest Valid HTML5 Document
What is a Smallest Valid HTML5 Document? If you are interested to see the smallest, but valid, HTML5 document, look at this one: <!DOCTYPE html> <html><he ad><title&gt ;Hello</title>&a mp;lt;/head><bod y><foot...
2024-03-07, 1111🔥, 0💬

Top Level Structure of HTML5 Documents
What is the Top Level Structure of an HTML5 Document? The top level structure of an HTML5 document in HTML serialization format consists of two parts: Document type declaration - Provides the document type and version information. Document root element - Provides the root element of the document: ht...
2024-03-07, 1003🔥, 0💬

What Is a Sub-element in HTML?
What Is a Sub-element in HTML? A sub-element is an HTML element that is included inside the content of another HTML element. The inner element is called the sub-element or child element. The outer element is called the parent element. Together they are called nested elements. Note that which element...
2024-02-28, 1277🔥, 0💬

What Is CDATA in HTML Documents?
What Is CDATA in HTML documents? CDATA stands for Character DATA, which is used to define a section of data that should not go through the XHTML entity translation (parsing) process. In other words, 3 special characters: "<", ">", and "&" can be directly used in CDATA. They wil...
2024-02-28, 1158🔥, 0💬

Two HTML Elements Overlapping Each Other
Can Two HTML Elements Partially Overlap Each Other? No, two elements can not partially overlap each other. One element must be completely enclosed inside the other element. See the following two examples: <!-- Valid: "em" is enclosed inside "strong" --> <p>There was once ...
2024-02-28, 1140🔥, 0💬

Required Sub-elements in HTML
What Is a Required Sub-element? A required sub-element is a sub-element that you must included in the parent element. Most sub-elements are optional. But there are some sub-elements that are required by their parent elements. Here are two good examples: <!-- Valid: "head" requires "title" --&...
2024-02-28, 1086🔥, 0💬

Sequence of Sub-elements in HTML
What Is the Sequence of Sub-elements? The sequence of sub-elements is the order of how each sub-element is placed inside the parent element. For most parent elements, their sub-elements can be placed in any order. But some parent elements require you to follow a predefined sequence. For example, ele...
2024-02-28, 1064🔥, 0💬

White Space Characters Handling Rules in HTML
How Exactly White Space Characters Are Ignored? White space characters will be processed (ignored) based where they are located: White space characters will be ignored between block elements. White space characters will be preserved in element "pre". White space characters will be preserved in CDATA...
2024-02-21, 1247🔥, 2💬

HTML Document Structure and Head Level Tags
Where to find tutorials of introduction to HTML Document Structure and Head Level Tags? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team in introduction to HTML Document Structure and Head Level Tags. Clear answers are provided with tutorial exerci...
2024-02-18, 1318🔥, 0💬

White Space Characters in HTML
What Is a White Space Character? A white space character is a character that leaves nothing on your screen. There are 4 known white space characters: " " - The space character. "\t" - The tab character. "\n" - The new line character. "\r" - The carriage return character. White space characters are g...
2024-02-18, 1142🔥, 0💬

HTML 'html' Tag/Element
What Is the HTML "html" Tag/Element? The "html" element is the first element you need to learn. The "html" element is used to enclose the entire HTML document. Here are some rules about the "html" element: The html element is the only top level element. The html element is also called the root eleme...
2024-02-18, 1135🔥, 0💬

Getting Extra White Spaces in HTML
How To Get an Extra White Space? As you know that white space characters will be ignored in elements like "p". So how to get some extra white space to show up in your text paragraphs? On easy solution is to use XHTML entity: " ", which stands for "non-breaking space". Here is an example...
2024-02-18, 1004🔥, 0💬

Relation between HTML and CSS?
What Is the relation between HTML and CSS? CSS (Cascading Style Sheets) is a technical specification that allows HTML document authors to attach formatting style sheets to HTML documents. When HTML documents are viewed as Web pages through Web browsers, the attached style sheets will alter the defau...
2024-02-09, 1338🔥, 0💬

Relation between HTML and SGML
What Is the relation between HTML and SGML? SGML (Standard Generalized Markup Language) is a metalanguage in which one can define markup languages, like HTML, for documents. SGML is a descendant of IBM's Generalized Markup Language (GML), developed in the 1960s by Charles Goldfarb, Edward Mosher and...
2024-02-09, 1169🔥, 0💬

Relation between HTML and DTD
What Is the relation between HTML and DTD? DTD (Document Type Definition) is a language based on XML to you to define a specific type of XML documents. Since the XHTML serialization of an HTML document is a specific type of XML documents, you can use DTD to define the structure of XHTML. In fact, XH...
2024-02-09, 1140🔥, 0💬

Relation between HTML and URI?
What is the relation between HTML and URI? URI (Uniform Resource Identifier) is a superset of URL. URI provides a simple and extensible means for identifying a resource in a more generic way. For example, the following strings are all valid URIs: ftp://ftp.is.co.za/rfc/rfc1808 .txthttp://www.ietf.or...
2024-02-09, 1110🔥, 0💬

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