HTML Attribute Reference. The lang global attribute helps define the language of an element: the language that non-editable elements are written in, or the language that the editable elements should be written in by the user. Objects have individuality, and multiple names (in multiple scopes) can be bound to the same object. The class attribute in HTML is used to specify or set a single or multiple class names to an element for an HTML and XHTML elements. specific elements. I believe that the original poster was correct. With the specified class name you can work it through CSS and point in a stylesheet. You will learn more about JavaScript in our HTML JavaScript chapter, or you can study our Classes allow CSS and Javascript to select and access specific elements via the class selectors or functions like the DOM method document.getElementsByClassName. A number of attributes in HTML 4 are common to most elements. Some of the most common HTML attributes are the src attribute of an img tag, the href of an a tag, class, id, and style. Elements in HTML have attributes; these are additional values that configure the elements or adjust their behavior in various ways to meet the criteria the users want. Any class that inherits from Attribute can be used as a sort of "tag" on other pieces of code. Definition and Usage. This happens when the value of class attribute of an HTML element matches the name of class. The ID attribute uniquely identifies an element within a document. "note". However, it can also be used by a JavaScript (via the HTML DOM) to make changes to HTML elements with a specified class. No two elements can have the same ID value in a single document. The HTML class attribute is Unlike id, name of a class can be used with multiple elements in an HTML document. Commonly, the class attribute points to a class in a style sheet. Core Attributes ID. The example of using the .className property is given as follows.. Classes are used by CSS and JavaScript to select and access specific elements. This information might not be essential for readers, but having easy access to it would make life a lot easier for us developers. "city". However, it can also be used by a JavaScript (via the HTML DOM) to make changes to HTML elements with a specified class. class attribute is part of the Global Attributes, and can be used on any HTML element. HTML class Attribute: The class attribute is used to specify one or more class names for an HTML element. While using W3Schools, you agree to have read and accepted our, Classes are used by CSS and JavaScript to select and access specific Class 4. class="city main">. The HTML class attribute is used to define equal styles for elements with the same class name. Id 2. Remember that an element can only have one ID which must be unique. HTML class attribute is used to give a class to an HTML element. but I DO NOT want to have to write custom code. Tip: Use the getAttributeNode () method if you want to return the attribute as an Attr object. Classes can be applied to multiple elements and also combined. So, all HTML elements with the same class attribute will get the same style. You can see from the above output, if you place the mouse cursor over the line Using HTML title Attribute, you will watch the title I am the HTML title attribute is coming out as a tooltip of the cursor. Then, define the CSS properties within curly braces {}: HTML elements can belong to more than one class. The class attribute is mostly used to point to a class in a style sheet. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. Add a color property with the value "blue" inside the "special" class. Example - Adding the class name. HTML5 attributes are case insensitive and may be written in all uppercase or mixed case, although the most common convention is to stick with lowercase. The HTMLElement.dataset property gives access to them. To create a class; write a period (.) In C#, attributes are classes that inherit from the Attribute base class. The class name can be used by CSS and JavaScript to perform certain tasks for elements with the specified class name. An attribute either modifies the default functionality of an element type or provides functionality to certain element types unable to function correctly without them. city class and also to the main class, The elements will be styled equally according to the .city Use of the class attribute in an HTML document: If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail: W3Schools is optimized for learning and training. The class name can be used by CSS and JavaScript to perform certain tasks for elements with the specified class name. This attribute can also be used by JavaScript via the HTML DOM to make certain changes to HTML elements with a specified class name. For instance, there is an attribute called ObsoleteAttribute. In the following example we have three

elements The class is not a unique attribute and can be different or the same on a web page. In this example, we are using the .className property for adding the "para" class to the paragraph element having id "p1".We are applying the CSS to the corresponding paragraph using the class name "para".. We have to click the given HTML button "Add Class" to see the effect. The class attribute in HTML is used to set one or more classnames for an element. used to specify a class for an HTML element. to a class name in a style sheet. The hover attribute changes the color of the link when a user hovers over it. Its majorly used to indicate a class in a style sheet. Like id attribute, the class attribute is also used to identify elements. While using W3Schools, you agree to have read and accepted our. classes specified. Forms a class of attributes, called custom data attributes, that allow proprietary information to be exchanged between the HTML and its DOM representation that may be used by scripts. The class global attribute is a space-separated list of the case-sensitive classes of the element. The I want to apply the HTML 5 'autofocus' attribute to one field on every form,. The table below lists all HTML attributes and what elements … The element will be styled according to all the This is usually not appreciated on a first glance at Python, and can be safely ignored when dealing with immutable basic types (numbers, strings, tuples). If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail: W3Schools is optimized for learning and training. To define multiple classes, separate the class names with a space, e.g. The active link changes the color of the link the moment it is clicked by a user. This is the color which the link will change to at the moment it is clicked. These parameters are received like HTML attributes when you use the component: