HTML is Not Case Sensitive. HTML tags are not case sensitive: <P> means the same as <p>. The HTML standard does not require lowercase tags, but W3C recommends lowercase in HTML, and demands lowercase for stricter document types like XHTML.
Code sample<!DOCTYPE html><html><body><h1>My First Heading</h1><p>My first paragraph.</p>...
This will open a window containing the HTML source code of the page. Inspect an HTML Element: Right-click on an element (or a blank area), and choose "Inspect" or "Inspect Element" to see what elements are made up of (you will see both the HTML and the CSS). You can also edit the HTML or CSS on-the-fly in the Elements or Styles panel that opens.
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- Html Document Structure Before HTML5
- New Semantic Tags Added by HTML5
- An Html Document Template
In this brief tutorial we’ll touch on all of the new tags added as part of HTML5 to define the structure and content of a web page. The elements we’re going to cover in this guide include: 1. header 2. main 3. nav 4. article 5. section 6. aside 7. address 8. footer Using these elements isn’t as complicated as it might appear at first glance, and most are fairly self-explanatory. We’ll make a quick pass over each new element, and then draw up an HTML template you can use these new tags to add rich semantic meaning to your markup.
The template below will show you how all of these elements are properly nested together. We invite you to copy it and use it as a boilerplate template for all of your HTML documents.
Jul 30, 2021 · An HTML Document is mainly divided into two parts: HEAD: This contains the information about the HTML document. For Example, Title of the page, version of HTML, Meta Data etc. BODY: This contains everything you want to display on the Web Page. HTML Document Structure. Let us now have a look at the basic structure of HTML.
The HTML <code> element is used to define a piece of computer code. The content inside is displayed in the browser's default monospace font. Example. Define some text as computer code in a document: <code>. x = 5; y = 6; z = x + y; </code>.
- Elements and Tags
- Special Characters
- A Complete Html 4 Document
- Validating Your Html
Elements are the structures that describe parts of an HTML document. For example, the P element represents a paragraph while the EM element gives emphasizedcontent. An element has three parts: a start tag, content, and an end tag. A tag is special text--"markup"--that is delimited by "<" and ">". An end tag includes a "/" after the "<". For example, the EM element has a start tag, , and an end tag, . The start and end tags surround the content of the EMelement: This is emphasized text Element names are always case-insensitive, so , , and are all the same. Elements cannot overlap each other. If the start tag for an EM element appears within a P, the EM's end tag must also appear within the same Pelement. Some elements allow the start or end tag to be omitted. For example, the LI end tag is always optional since the element's end is implied by the next LIelement or by the end of the list: Some elements have no end tag because they have no content. These e...
An element's attributes define various properties for the element. For example, the IMG element takes a SRC attribute to provide the location of the image and an ALTattribute to give alternate text for those not loading images: An attribute is included in the start tag only--never the end tag--and takes the form Attribute-name="Attribute-value". The attribute value is delimited by single or double quotes. The quotes are optional if the attribute value consists solely of letters in the range A-Z and a-z, digits (0-9), hyphens ("-"), periods ("."), underscores ("_"), and colons (":"). Attribute names are case-insensitive, but attribute values may be case-sensitive.
Certain characters in HTML are reserved for use as markup and must be escaped to appear literally. The "<" character may be represented with an entity, <. Similarly, ">" is escaped as >, and "&" is escaped as &. If an attribute value contains a double quotation mark and is delimited by double quotation marks, then the quote should be escaped as ". Other entities exist for special characters that cannot easily be entered with some keyboards. For example, the copyright symbol ("©") may be represented with the entity ©. See the Entitiessection for a complete list of HTML 4 entities. As an alternative to entities, authors may also use numeric character references. Any character may be represented by a numeric character reference based on its "code position" in Unicode. For example, one could use © for the copyright symbol or اfor the Arabic letter alef.
Comments in HTML have a complicated syntax that can be simplified by following this rule: Begin a comment with "", and do not use "--" within the comment.
An HTML 4 document begins with a DOCTYPE declaration that declares the version of HTML to which the document conforms. The HTML element follows and contains the HEAD and BODY. The HEAD contains information about the document, such as its title and keywords, while the BODY contains the actual content of the document, made up of block-level elements and inline elements. A basic HTML 4 document takes on the following form: In a Frameset document, the FRAMESET element replaces the BODYelement.
Each HTML document should be validated to check for errors such as missing quotation marks (