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How to Link JavaScript to HTML and CSS

Creating, Designing, and starting up your Webpage or Website is simple. If you look past all the texts, codes, and scripts that usually crowd up and populate your screens. The languages of HTML, CSS, and JavaScript are widely known and used. To better understand this, we need some definitions about these 3 made relatable and straightforward.

Before we proceed I would like to have the opportunity to thank and for making this article possible to create.

So, allow us to introduce your Webpage as an artwork. This artwork has 3 elements to make it a masterpiece. This can be achieved when one makes sure that all the instruments you need to begin carving, painting, or creating your work are thoroughly planned and defined as to what they will contribute to your art. These consist of (HTML) the Paper or your base of the artwork. (CSS) The color and design are incorporated in your base and, finally, (JavaScript) the purpose and functionalities of this artwork. With all these 3 present, a harmonious relationship is built for everyone to see, use and be a part of.

Let’s break it down further, so we can fully associate the relationship these languages have, shall we:

Explanation of the different code languages


  • Your Hypertext Markup Language
  • The blank canvas with all the sets of the standard, your masterpiece will follow.
  • Indicate here your essential texts, title, and actions for your Webpage
  • This is the part where all of your other parts will be hosted, defined, or incorporated
  • Where UI is present


  • Cascading Style Sheets
  • This is where you now can accessorize, design, decide the size and add color to your artwork or Webpage based on the idea or first draft you have done in your canvas. All aesthetic elements can be directed here and input here to be seen by your audience.


  • The language you use in your Webpage or artwork that defines graphics, animation, and sounds
  • If you want your artwork to have bonuses of other features and functionalities, this is the part responsible for that.
  • Think of it as a bonus and added flare to your artwork.
  • This is in charge of facilitating the next steps for your buttons, links, icons, and anything to do with what is clickable on your page
  • This defines what your artwork is all about and what it is for.

To make sure that your artwork or Webpage is making the best use out of your JavaScript element, you must introduce the function it needs to do clearly in your tag. Your Headlines or texts will now be able to redirect you to a pop-up page based on the attached links/link when clicked, play a video or present an image. This language (JavaScript) is in charge of your graphics functionalities and all other actions when a text, button, or icon is clicked on your Webpage.

But to achieve this, you must include a bridging element in your commands that will enable your language to understand the functionality you want to execute. The key to making any interaction work in your user interface is defined by the presence of your “tags.” This tag is your site’s way of locating where it is, understanding what you want it to do, and the rhythm or pace your page needs to take on as it loads on your browser. Your tags can be included or put together in the head, body, or external file you wish to add to your site. As this it the most common method (Script Tags), there are other ways to link your JavaScript depending on your preference and interface.

Here is a detailed note on how you can link your JavaScript (with HTML and CSS):

HTML with Script Tag


In this example, you may link your JavaScript via HTML this way. When it loads, this is seen as “JavaScript” as the title on your web page.

HTML via Code Programming

This is used more for dynamic actions in the page like color transitioning’s, sizes of texts, animations, etc. this can be manipulated in your language via <script type=”text/JavaScript”> (‘<body style=”background-color: (insert color you prefer)”>’)

Remember, you may use an internal JavaScript code in this part then convert it as well should there be errors as you can still manipulate this functionality in a different manner shown next.

HTML via Separate File

You may also try it as a separate file with no script tags via javascript.js. but this technique is a bit tricky as this confuses where the browser locates the code and may lead to errors.

To avoid these errors when using this method, attach a path to enable direction via <script src=(insert “PATH”)>

CSS via Style Tag

In the body of your HTML, add something that can attribute to the style that includes linking of the two (or how you want your text to be displayed) via <title>Linking to CSS and JavaScript</title>

Your link element with the JavaScript tag should be placed between the source document and the

HTML. This way, the relationship of each corresponding code is attributed fairly.

Though it is advised that this is not necessarily done in most cases as some functionalities in CSS and JavaScript can both deliver what is attributed to them, it is still possible.

The background color of your page, size of your text or font, and the dynamics of the texts can be manipulated here.

The execution of your site’s image manipulation or dynamic content changes and form validations can be added to your Web page’s function in totality using these parameters. Make your artwork or Webpage all the more comprehensive through this. These commands will allow you to import external and internal files to attach them in your JavaScript code accordingly, like in the case of HTML but not as necessary in your CSS. So remember, always insert the scripts or tags first before embedding your JavaScript so that your language will be understood by your site or HTML and will know how they can directly translate the function you are manipulating them to execute. Your page heavily depends on the logic that your command has input between your script tags, codes, and programming to take appropriate actions step by step.

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