What are CSS ids and classes?

Reference table of selectors SelectorExampleLearn CSS tutorialClass selector.box { }Class selectorsid selector#unique { }ID selectorsAttribute selectora[title] { }Attribute selectorsPseudo-class selectorsp:first-child { }Pseudo-classesCSS selectors – Learn web development | MDN developer.mozilla.org › en-US › docs › Learn › CSS › Building_blocks

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.

Class Selectors Match an element that has the specified class. To match a specific class attribute, we always start the selector with a period, to signify that we are looking for a class value . The period is followed by the class attribute value we want to match.

In the CSS, a class selector is a name preceded by a full stop (“.”) and an ID selector is a name preceded by a hash character (“#”) . The difference between an ID and a class is that an ID can be used to identify one element, whereas a class can be used to identify more than one.

What is a CSS class? 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 .8 Mar 2022

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 (.)