By default, HTTP is a persistent connection.
Whenever a browser opens a webpage, a separate HTML request must be sent for each image or component in HTML like css file or javascript. But all can be done in the same TCP connection.

Note: Out of syllabus.

Note: Out of syllabus.

→ The

tag defines an ordered list. An ordered list can be numerical or alphabetical.
→ The
tag defines an unordered (bulleted) list. Use the
tag together with the
• tag to create unordered lists.
  

→ A container tag in HTML is one which has both opening and closing tags.
→ There are some tags in HTML which don't have a closing tag.
→ They end within the same tag.
Examples:
→ is a container tag, it has it's closing tag as .
→Other examples are , ,

etc.
→These are called container tags because they contain something, within the two tags.

• The text-align property sets the horizontal alignment (like left, right, or center) of the content in or .
• The vertical-align property sets the vertical alignment (like top, bottom, or middle) of the content in or .

We can achieve first three options by using HTML(static web pages). But to display the client time alone HTML is not sufficient , We require Java Script.

If you create HTML page with the above code,we will get table structure as below

● Both XML and HTML languages are case sensitive.
● Both XML and HTML consists of Tags. Every open tag should consists of close tag in both languages.

→ Select and style all

elements AND all

elements:
Example:
h1, p { background-color: yellow; }
→ To style several elements with the same style, separate each element name with a comma.

1.XML stands for eXtensible Markup Language.
2.XML was designed to store and transport data.
3.XML was designed to be both human- and machine-readable.
Syntax: < ?xml version="1.0"/ >

Web links are stored within the page itself and when you wish to 'jump' to the page that is linked, we select the hotspot or anchor. This technique is called hypertext or hypermedia.

→ In HTML, images are defined with the < img > tag.
→ The < img > tag is empty, it contains attributes only, and does not have a closing tag.
→ The src attribute specifies the URL (web address) of the image: < img src="url" >

→ HTML defines six levels of headings.
→ A heading element implies all the font changes, paragraph breaks before and after, and any white space necessary to render the heading.
→ The heading elements are H1, H2, H3, H4, H5, and H6 with H1 being the highest (or most important) level and H6 the least.

The “a” is known as an anchor and it acts as a mini URL. So if you had a page called test.html, I could actually link directly to your anchor like this:
https://example.com/test.html#top and it would load your page and scroll to your anchor. All syntaxes are valid for creating hyperlinks.

Web links are stored within the page itself and when you wish to 'jump' to the page that is linked, we select the hotspot or anchor. This technique is called hypertext (or) Hypermedia

● “ALT” attribute is used along with tag to specify the text in place of image, if image not able to see.
● The syntax is
< img src=”file.jpg” alt=”Image can’t be loaded” >

Linking nothing but creating hyperlinks from HTML page or HTML document to another HTML Page or HTML document.

Most web browsers (excluding text-only ones like Linux, Mosaic) can display only a handful of these formats inline. The format of about 90% of these files is binary.
1. ​ Graphical interchange format - GIF
For line art (such as one- or two-color logos), simple drawings, animations, and basically any image that has no gradients or blends. GIF is also the best format when you want to display an image with a transparent background.
2. J​ oint Photographic Experts Group - JPEG
JPEG is the best format for colorful, complex images (such as photographs); images containing gradients or color blends; and any other images with millions of colors.
3. ​ Portable Network Graphics - PNG
PNG generally produces better-looking images with smaller file sizes than GIF for the same kinds of limited-color images. Really old browsers, such as IE 3, don’t support the PNG format, but most Web designers now choose this format over GIF because so few people use such old browser. Browsers as recent as IE6 don’t display transparent PNG files properly, which is unfortunate because PNG files tend to handle transparency better.
4. ​ X-Bitmap/X-Pixelmap
X-Bitmaps are a common format on UNIX platforms, and are often found in older image and icon libraries. Here, a bit is used to represent each pixel of the graphics. Consequently, only black and white images are supported. Transparency is possible as in GIF since the white portion is treated as the color of the underlying background (making way for attractive designs). X-Pixel map is the colour equivalent of X-Bitmap. Here, 8 bits represent each pixel(256 colours). Obviously, both methods are very inefficient in terms of storage space required. It is quite uncommon outside the UNIX environment.

→ A DTD defines the structure and the legal elements and attributes of an XML document.
→ With a DTD, independent groups of people can agree on a standard DTD for interchanging data.
→ An application can use a DTD to verify that XML data is valid.

The HTML < h1 > to < h6 > tag is used to define headings in an HTML document.
→ < h1 > defines largest heading
→ < h6 > defines smallest heading.

When an ASP.NET file is placed on an IIS server and viewed through a browser, the resulting HTML page contains all HTML code.

• HTML offers many of the conventional publishing idioms for rich text and structured documents, but what separates it from most other markup languages is its features for hypertext and interactive documents.
• This section introduces the link (or hyperlink, or Web link), the basic hypertext construct. A link is a connection from one Web resource to another. Although a simple concept, the link has been one of the primary forces driving the success of the Web.
• A link has two ends -- called anchors -- and a direction. The link starts at the "source" anchor and points to the "destination" anchor, which may be any Web resource (e.g., an image, a video clip, a sound bite, a program, an HTML document, an element within an HTML document, etc.)

A multimedia project is said to be hypertext and user interactive when users are given navigational control

→The

tag is used to describe a term/name in a description list.
→The

tag is used in conjunction with

(defines a description list) and

(defines terms/names).
→Inside a

tag you can put paragraphs, line breaks, images, links, lists, etc.

The < a > tag defines a hyperlink, which is used to link from one page to another. Default target
If no target is specified, the link will open in the current context, unless the user or browser specifies otherwise.
a target=”_blank” Open in New Browser Tab (or Window)
The target attribute specifies where the linked document will open when the link is clicked. The default is the current window. If target="_blank", the linked document will open in a new tab or (on older browsers) a new window.

● The text-align property sets the horizontal alignment (like left, right, or center) of the content in or .
● The vertical-align property sets the vertical alignment (like top, bottom, or middle) of the content in or .

FALSE: Entities are used to display characters that have special HTML meaning, such as “<” and “>”.
FALSE: Once a web server returns a cookie to a browser, the cookie will be included in all future requests from the browser to the same server.

HTML is not a programming language. It is a markup language. The abbreviation of HTML is hypertext markup language.

This tag is for address information, signatures, etc, normally at the top or bottom of a document. typically, it is italic and/or right justified or indented.
The format is:
< ADDRESS > text ... < / ADDRESS >

The < script > tag is used to define a client-side script (JavaScript).
The < script > element either contains scripting statements, or it points to an external script file through the src attribute.
Common uses for JavaScript are image manipulation, form validation, and dynamic changes of content.

Frame attribute → To specify the side of the table frame that display border
The < frame > tag defines one particular window (frame) within a < frameset >.
Each < frame > in a < frameset > can have different attributes, such as border, scrolling, the ability to resize, etc.
< tr > tag → To enclose each row in a table.
The < tr > tag defines a row in an HTML table.
A < tr > element contains one or more or elements
Valign attribute → for vertical alignment of content in cell
< a > tag → To create link in HTML