The difference between POST and PUT is that PUT requests are idempotent. That is, calling the same PUT request multiple times will always produce the same result. In contrast, calling a …

HTTP Request: GET vs. POST. Two commonly used methods for a request-response between a client and server are: GET and POST. GET - Requests data from a specified resource; POST …

The form-data can be sent as URL variables (with method="get") or as HTTP post transaction (with method="post"). Notes on GET: Appends form-data into the URL in name/value pairs

XHTML is a stricter, more XML-based version of HTML; XHTML is HTML defined as an XML application; XHTML is supported by all major browsers

The <div> element is a block-level element and is often used as a container for other HTML elements; The <span> element is an inline container used to mark up a part of a text, or a part …

W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, …

Nested HTML Elements. HTML elements can be nested (this means that elements can contain other elements). All HTML documents consist of nested HTML elements. The following …

justify-content: flex-start|flex-end|center|space-between|space-around|space-evenly|initial|inherit;

The id attribute specifies a unique id for an HTML element. The value of the id attribute must be unique within the HTML document. The id attribute is used to point to a specific style …

What is the difference between PX, EM and Percent? Pixel is a static measurement, while percent and EM are relative measurements. The size of an EM or percent depends on its parent. If the …