There are several types of CSS selectors, including:

There are several types of CSS selectors, including:

1. Element selectors - select HTML elements based on their element names. For example, p selector will select all <p> elements in the document.

2. Class selectors - select HTML elements based on their class attributes. For example, The .my-class selector will select all elements that have a class attribute with the value "my-class".

3. ID selectors - selects a single HTML element based on its id attribute. For example, #my-id selector will select the element that has the id attribute with the value "my-id".

4. Universal selectors - selects all HTML elements. For example, * selector will select all elements in the document.

5. Attribute selectors - select HTML elements based on the presence or value of their attributes. For example, [href] selector will select all elements that have an href attribute.

6. Pseudo-class selectors - select elements based on their state or position in the document. For example, : hover selector will select an element when the user hovers over it with the mouse.

7. Pseudo-element selectors - select parts of an element, such as the first letter or first line of text. For example, ::before selector will select and style the content before an element.

8. Combinator selectors - select elements based on their relationship with other elements in the document. For example, div p selector will select all <p> elements that are descendants of a <div> element.

By using these selectors, you can target and apply styles to specific HTML elements, groups of elements, or even based on their relationships with other elements on the page.