What is a class in HTML and CSS?
What is a class in HTML and CSS?
The class is an attribute which specifies one or more class names for an HTML element. The class attribute can be used on any HTML element. The class name can be used by CSS and JavaScript to perform certain tasks for elements with the specified class name.
How do I create a CSS class in HTML?
To select elements with a specific class, write a period (.) character, followed by the name of the class. You can also specify that only specific HTML elements should be affected by a class. To do this, start with the element name, then write the period (.)
What is CSS class example?
A CSS class is an attribute used to define a group of HTML elements in order to apply unique styling and formatting to those elements with CSS. Let’s look at an example of how CSS classes work. Below, we have a simple HTML page with three headings (h2 elements) and three paragraphs (p elements).
What is class in HTML with example?
Definition and Usage. The class attribute specifies one or more classnames for an element. The class attribute is mostly used to point to a class in a style sheet. However, it can also be used by a JavaScript (via the HTML DOM) to make changes to HTML elements with a specified class.
How do you name a class in CSS?
How to name css classes
- Before to think about class name, choose a good name for HTML elements.
- Put the class name at the lowest possible level.
- Use content to find a name.
- Don’t use content, if the picture speaks louder.
- Try -like suffix for better reuse.
- Don’t use camelCase.
- Try BEM.
- Try more uglier.
How do I add a class to an element in HTML?
To add a class to an element rather than replacing its existing classes, use the += operator instead. Note, it is important to prefix the new classname with space; otherwise, one of the existing classes of an element is lost.
Why would you use a class in CSS?
The basic rule that you need to keep in mind while using classes and ids in CSS is that, id is used for single elements that appear on the page for only once (e.g. header, footer, menu), whereas class is used for single or multiple elements that appear on the page for once or more than once (e.g. paragraphs, links.
What is a HTML class?
The HTML class attribute specifies one or more class names for an element. Classes are used by CSS and JavaScript to select and access specific elements. The class attribute can be used on any HTML element. The class name is case sensitive. Different HTML elements can point to the same class name.
Where are HTML classes defined?
A class attribute can be defined within