CSS vs HTML

Understand the difference between HTML and CSS and why both are needed to build modern web pages.

What is the Difference?

HTML and CSS work together, but they have different responsibilities.

HTML defines the structure and content of a page, while CSS controls its visual appearance and layout.

HTML and CSS Together

HTML

Defines the structure and content of the web page.

Example: Heading, paragraph, image, button

CSS

Controls the appearance, spacing, layout, and design.

Example: Color, font, margin, layout

HTML vs CSS

HTML	CSS
Defines page structure	Defines page styling
Creates content and elements	Styles those elements
Uses elements and tags	Uses selectors and declarations
Defines headings, paragraphs, images, forms, etc.	Defines colors, fonts, spacing, borders, layouts, etc.
Provides the structure	Provides the presentation

Simple Example

HTML can create a heading, while CSS can change its color and size.

<h1 class="title">Welcome to CIIT</h1>

<style>
.title {
    color: blue;
    font-size: 32px;
}
</style>

What does HTML do?

The HTML element creates the heading and provides the content that should be displayed.

What does CSS do?

CSS selects that heading and changes its appearance using properties such as color and font-size.

Can HTML Work Without CSS?

Yes. A browser can display HTML without CSS, but the page will have very basic browser styling.

CSS is used when we want better visual design, spacing, layouts, responsiveness, and user experience.

Can CSS Work Without HTML?

CSS is normally used to style HTML or other web document elements. Without elements to style, CSS has no visible page structure to present.

Remember:

HTML builds the structure. CSS styles the structure.

Summary

HTML is responsible for the structure and content of a web page. CSS is responsible for styling, layout, spacing, colors, fonts, and visual presentation. Modern web pages commonly use HTML and CSS together.