Your question: Can ID and class have same name?

Yes, you can use same name for both id and class because both parameters have their own significance. The only problem with having same name for class and id is code readability and maintainability. They can have the same names, the browser will render the correct CSS as classes and ids are marked differently (.

Can a tag have both ID and class?

Yes. Self explanatory. but only one ID per element, and each ID should only be used once per HTML page.

Can we use ID and class together in CSS?

You Can Use Both ID and CSS Class Selectors

There are no rules in HTML that prevent you from assigning an element both an ID and a class. This <div> tag will be subject to the styles for the class backgroundOrange . In addition, it will also use the styles applied to the customDiv ID using an ID selector.

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How do you name a class and ID in HTML?

Always favor lowercase, for elements, for attributes and their values, for classes and ids. Multi-word names for classes and ids should either 1., concatenate the words in lowercase without any in-between character, or 2., separate each word with a “-” (not “_”) and maintain lowercasing throughout.

How do you name a class ID?

Best Practices for ID and Class Names

  1. Keep Use of IDs and Classes to a Minimum. …
  2. Use Functional ID and Class Names. …
  3. Use Generic ID and Class Names. …
  4. Also: Use Names That Are as Short as Possible But as Long as Necessary. …
  5. Update (August 19, 2021)

What is the difference between class and id?

Difference between id and class attribute: The only difference between them is that “id” is unique in a page and can only apply to at most one element, while “class” selector can apply to multiple elements.

What is the difference between a class and an ID Give me an example of when I might use each one?

Examples of class names are: tag, comment, toolbar-button, warning-message, or email. Use the ID when you have a single element on the page that will take the style. Remember that IDs must be unique. In your case this may be the correct option, as there presumably will only be one “main” div on the page.

Does ID override class?

Assuming there are no other styles that are affecting the element in the HTML file the styles applied via the ID will override any style applied through reference of the Class specific to that element.

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Can HTML have 2 IDS?

The HTML id attribute is used to specify a unique id for an HTML element. You cannot have more than one element with the same id in an HTML document.

Why do we use class and id?

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 the difference between ID and name in HTML?

id is used to identify the HTML element through the Document Object Model (via JavaScript or styled with CSS). id is expected to be unique within the page. name corresponds to the form element and identifies what is posted back to the server.

How do you name an ID?

There are some rules you have to follow for naming identifiers:

  1. The first character of the identifier must be a letter of the alphabet (upper or lowercase) or an underscore (‘_’).
  2. The rest of the identifier name can consist of letters (upper or lowercase), underscores (‘_’) or digits (0-9).

What happens if two HTML elements have the same ID?

Answer. As HTML and CSS are designed to be very fault tolerant, most browsers will in fact apply the specified styles to all elements given the same id. However, this is considered bad practice as it defies the W3C spec. Applying the same id to multiple elements is invalid HTML and should be avoided.

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Can CSS classes have numbers?

In CSS, identifiers (including element names, classes, and IDs in selectors) can contain only the characters [a-z0-9] and ISO 10646 characters U+00A1 and higher, plus the hyphen (-) and the underscore (_); they cannot start with a digit, or a hyphen followed by a digit.

What is class name in HTML?

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 HTML and CSS?

How to name css classes

  1. Before to think about class name, choose a good name for HTML elements. …
  2. Put the class name at the lowest possible level. …
  3. Use content to find a name. …
  4. Don’t use content, if the picture speaks louder. …
  5. Try -like suffix for better reuse. …
  6. Don’t use camelCase. …
  7. Try BEM. …
  8. Try more uglier.