CSS ID's And Class's

Universal selectors in CSS allow you to select and style all elements in a document. By using the asterisk (*) symbol as the selector, you can apply styles to every element on the page. This means that the styles defined with the universal selector will be applied universally throughout the entire document, making the statement "Universal selectors allows you to style the entire document" true.

The statement "each Id can only be used once" implies that each identification number can only be used for a single purpose or transaction. This ensures uniqueness and avoids any confusion or duplication in the system. Therefore, the correct answer is True, indicating that the given statement is accurate.

classes use a dot ---> .elementA{ color:red;}

A universal selector, denoted by the asterisk (*) symbol, is used to select every element in the document for styling. It allows the coder to apply CSS rules to all elements on the page without having to specify individual selectors for each element. This can be useful for applying global styles or making broad changes to the entire document. By using the universal selector, the styling is pulled into the CSS and can be easily applied to all elements, saving time and effort in coding.

A selector is an attribute that allows you to select an HTML element for styling within CSS. It is used to target specific elements on a webpage and apply styles to them. By using selectors, you can define the appearance of various HTML elements such as headings, paragraphs, links, etc. in your CSS code. This helps in creating a visually appealing and consistent design for a website.

A class selector is a feature in HTML and CSS that allows you to select any element within the HTML document that has a class attribute. This means that you can apply specific styles or behaviors to multiple elements that share the same class. By using a class selector, you can target and style elements in a more specific and efficient way, without affecting other elements on the page.

ID's can only be used once

An ID selector allows you to select any element within the HTML document once using an ID attribute. This means that you can target a specific element by its unique ID and apply styles or perform actions on that element.

A type selector allows the user to select entire elements, such as every paragraph or all of the divs, in order to apply styles or make modifications to them. It does not select specific sections of elements or attributes, nor does it pull elements from other parts of the page for editing.