Javascript Adds Style To The Element

| | | | | | | | | | | | | | | | | | | | | | |

👻 Check our latest review to choose the best laptop for Machine Learning engineers and Deep learning tasks!

When comparing the CSS class with the ID, the difference is that the CSS class applies styling to multiple elements. ID, on the other hand, applies a style to a single element. The ID is also special that you can use a special URL to link directly to an element and it is used by JavaScript.

CSS , selectors are used to target a specific element or multiple elements on a web page. Once an element has been targeted, a style or a set of styles can be applied to the element.

A wide variety of selectors are available. Two of the most commonly used are and ID. Both are used to target items with the title.

and ID selectors

What is the difference between tags > and ID ? This is a question asked by many developers who are new to CSS and we’ll answer in this guide.

By the time you finish reading this guide, you will know the differences between these two selectors. You will have the information you need to make an informed decision on which selection to use in your code. Let’s get started.

CSS selectors

a web page , you want to apply certain styles to specific elements of the page. For example, you can set the text color of all

tags to green or change the header font size .

Selectors allow you to target specific elements on a web page to which you can apply styles. There are a lot of selectors available in CSS, such as universal selectors, descendant selectors, child selectors, and grouping selectors . If you want to learn more about CSS selectors, read our beginner’s guide to CSS selectors.

Two selectors, and id , are used for style elements based on the class and ID assigned to an HTML element, respectively, but these selectors are often confusing, so we’ll explore what each does.

the id selector is unique

the id selector allows you to define style rules applicable to a single element on the web page. Each web page can have only one element with a single ID attribute. This means that the ID picker can never be used to style more than one element.

ID selectors are defined using a pound sign. They are immediately followed by the identity value to which you want to apply a set of style rules. Here is an example of the identity selector in action:

This style applies to the

element in our HTML document with the id betaBanner. The style will set the element’s background color to orange and the text color in the element white.

The class selector is not unique

a class selector allows you to define style rules that apply to any element with a class attribute equal to a certain value.

As mentioned - above, the identity selector can not be used for an element style. in fact, ID can only be used once on a Web page. the Courses, on the other hand, can be used on multiple elements. So if you apply a style using a class selector, any element that shares that class will be subject to the styles you define.

Class selectors are defined using a period, followed by the value of the class to which you want to apply a set of styles. Here is an example of the class selector in action:

. .orangeBackground {background-color: orange; }

This style sets the background color of our

tag to orange. Also, the style defines the background color of our orange tag, we could do it using this code:

In this code, all styles rules defined for orangeBackground and large classes are applied to our web element. With an ID card , however, we could not reproduce this behavior, because each item can only have one ID.

IDs have a unique browser function

So far we’ve discussed that IDs can apply styles to a single element. Unlike classes which can apply styles to multiple elements. This is not the only difference between class and ID selectors.

In the browser, classes have no special function. Their main purpose is to allow you to apply styles to a number of elements on a web page. ID, on the other hand, can be used by the browser to access a certain part of the web page.

If you assign an ID to an element, you can use a special URL to link directly to that element. This behavior works because IDs are unique on a web page.

Suppose we want to send a link to our website that automatically scrolls to the user with a header. We could do it using this code:

In this code, we have assigned an identity card to the tag

tag which contains the text Three. Now we could send a user a direct scrolling link to that element on the web page. This is done using the following address:

https: //domain.com/index.html#section3

When a user accesses this URL, (where domain.com is your site URL), they will scroll to the header with the id section3 . This behavior does not affect classes.

IDs are used by JavaScript

If you have experience with JavaScript , you will know that IDs are commonly used in this language of programming. The getElementById function allows you to select an element on a web page. It is based on the fact that only one item can share the same ID.

Classes, on the other hand, can reflect multiple elements on a web page. They wouldn’t be useful if you want to work with a particular element in JavaSc to rip.

You can use both class selectors ID and CSS

There are no rules in HTML that prevent you from assigning both a ID to an element of a class.

Suppose we want to apply the styles associated with a class called backgroundOrange to tag. You can do it using this code:

tag will be subject to styles for the backgroundOrange. Additionally, it will also use styles applied to ID customDiv using an identity selector.

Conclusion

When working with CSS, there is no specific reason for you to use an ID card on a class. However, it is a good idea to use ID only if you want the style of one web page element, and to use if you want the style of multiple elements.

In this tutorial we have discussed, referring to the examples, the basics of CSS IDs and class selectors, and we have compared and both. You are now ready to start using CSS IDs and class selectors as a seasoned developer!

👻 Read also: what is the best laptop for engineering students?

We hope this article has helped you to resolve the problem. Apart from Javascript Adds Style To The Element, check other __main__ Python module-related topics.

Want to excel in Python? See our review of the best Python online courses 2023. If you are interested in Data Science, check also how to learn programming in R.

By the way, this material is also available in other languages:



Schneider OConnell

Shanghai | 2023-01-31

I was preparing for my coding interview, thanks for clarifying this - Javascript Adds Style To The Element in Python is not the simplest one. Checked yesterday, it works!

Marie OConnell

Munchen | 2023-01-31

Simply put and clear. Thank you for sharing. Javascript Adds Style To The Element and other issues with os Python module was always my weak point 😁. Checked yesterday, it works!

Davies Emmerson

California | 2023-01-31

Maybe there are another answers? What Javascript Adds Style To The Element exactly means?. I just hope that will not emerge anymore

Shop

Gifts for programmers

Learn programming in R: courses

$FREE
Gifts for programmers

Best Python online courses for 2022

$FREE
Gifts for programmers

Best laptop for Fortnite

$399+
Gifts for programmers

Best laptop for Excel

$
Gifts for programmers

Best laptop for Solidworks

$399+
Gifts for programmers

Best laptop for Roblox

$399+
Gifts for programmers

Best computer for crypto mining

$499+
Gifts for programmers

Best laptop for Sims 4

$

Latest questions

PythonStackOverflow

Common xlabel/ylabel for matplotlib subplots

1947 answers

PythonStackOverflow

Check if one list is a subset of another in Python

1173 answers

PythonStackOverflow

How to specify multiple return types using type-hints

1002 answers

PythonStackOverflow

Printing words vertically in Python

909 answers

PythonStackOverflow

Python Extract words from a given string

798 answers

PythonStackOverflow

Why do I get "Pickle - EOFError: Ran out of input" reading an empty file?

606 answers

PythonStackOverflow

Python os.path.join () method

384 answers

PythonStackOverflow

Flake8: Ignore specific warning for entire file

360 answers


Wiki

Python | How to copy data from one Excel sheet to another

Common xlabel/ylabel for matplotlib subplots

Check if one list is a subset of another in Python

How to specify multiple return types using type-hints

Printing words vertically in Python

Python Extract words from a given string

Cyclic redundancy check in Python

Finding mean, median, mode in Python without libraries

Python add suffix / add prefix to strings in a list

Why do I get "Pickle - EOFError: Ran out of input" reading an empty file?

Python - Move item to the end of the list

Python - Print list vertically