What Are HTML, CSS, and JavaScript?

What Are HTML, CSS, and JavaScript?

You’ve heard of HTML and CSS, but what are they? These two languages are used in Web development. HTML is a system of elements encased in tags, including headings, paragraphs, and images. Each element has unique properties. Images, for instance, have a height and width, and links have attributes, such as whether they open a new window or tab. HTML has a variety of other uses, such as building interactive applications.

Cascading Style Sheets

CSS or cascading style sheets are a set of rules that control the layout of different parts of a web page. CSS allows you to change the look of the page on different devices and screen sizes, while also reducing security risks, such as cross-origin scripting vulnerabilities and HTML/CSS injections. The syntax of CSS is simple, consisting of the name of the element to style, followed by a semi-colon. The CSS selectors define various attributes for that element.


In contrast to HTML, which has no supporting libraries, JavaScript has many available frameworks. Examples include React, Ember, Vue, Svelte, and Tailwind. Both are useful in web development. Whether your site is meant to be used for personal or professional purposes, HTML and CSS need to be customized for each type of project. For example, an HTML page isn’t going to look the same as an apartment building’s lobby.

Web development frameworks

Using a framework for a web application can make it easier for developers to write code. It’s not necessary to know any programming language or be a programmer to use a framework. Instead, frameworks help developers by providing a common structure and common functionality. Frameworks are used to speed up the development process and make it easier for developers to reuse code. Listed below are a few frameworks:

Difference between HTML and CSS

There are several differences between HTML and CSS. While HTML provides the structure of a web page, CSS controls the styling of that page. This article will explore the difference between these two languages, and show you how you can use them to create a better web experience. HTML also includes HyperText, which is the text that you can click to navigate to another webpage. CSS uses a markup language to apply layout and formatting to text.

Functions of each language

While HTML is the base language for websites, CSS and JavaScript add functionality and control the way elements appear on the page. CSS controls layout and presentation while JavaScript makes elements behave. While HTML is used to create basic pages and enclose them in frames, CSS controls how elements are displayed. JavaScript allows you to create dynamic and interactive elements and apply dynamic data to HTML elements. The key is to understand how these two languages work and how they can enhance the content on your website.
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