Tutorial by Topics: elements

A key component of interactive web systems, input tags are HTML elements designed to take a specific form of input from users. Different types of input elements can regulate the data entered to fit a specified format and provide security to password entry. <input type="" name=&quo...

The HTML5 standards does not list the main element as a sectioning element.

.prototype.createdCallback() .prototype.attachedCallback() .prototype.detachedCallback() .prototype.attributeChangedCallback(name, oldValue, newValue) document.registerElement(name, [options]) ParameterDetailsnameThe name of the new custom element.options.extendsThe name of the native el...

Pseudo-elements, just like pseudo-classes, are added to a CSS selectors but instead of describing a special state, they allow you to scope and style certain parts of an html element. For example, the ::first-letter pseudo-element targets only the first letter of a block element specified by the sel...

Not all HTML tags are of the same structure. While most elements require an opening tag, a closing tag, and contents, some elements - known as void elements - only require an opening tag as they themselves do not contain any elements. This topic explains and demonstrates the proper usage of void ele...

A Custom Element in Aurelia is used to extend the basic set of HTML elements by feature-enriched, reusable components. A Custom Element normally exists out of two files, a View-Model based on Javasciprt, and a corresponding view written in HTML. Both files compose the HTML element which can then be ...

AttributeDetailswidthSets the element's width in pixels.heightSets the element's height in pixels.<source>Defines resources of the audio or video filestrackDefines the text track for media elementscontrolsDisplays controlsautoplayAutomatically start playing the medialoopPlays the media in a ...

ByChained(params By[] bys) Items are found in Selenium through the use of locators and the By class. In order to make a robust automation project with Selenium, one should use locators for Web Elements smartly. The locators should be descriptive, unique, and unlikely to change so you won't...

To be able to interact with a page, you need to tell Protractor exactly which element to look for. The basis used for selecting elements are locators. Protractor, as well as including the generic Selenium selectors, also has Angular-specific locators which are more robust and persistent to changes. ...