Think of building a website as building a house:

• HTML is the blueprint. It defines the structure of the house, like where the walls, doors, and windows will be placed. Without a blueprint, there’s no framework for your house!
• CSS is like the interior and exterior design. It defines how your house looks — the paint color, flooring, furniture, etc. While HTML gives you the skeleton of the house, CSS makes it aesthetically pleasing.

Example:

HTML Structure (Skeleton):

<div>
  <h1>Welcome to My House</h1>
  <p>This is the living room.</p>
</div>

CSS Styling (Interior Design):

div {
  background-color: beige;
  border: 2px solid black;
}
h1 {
  color: blue;
  text-align: center;
}

In this case:

• HTML builds the rooms (the div, h1, and p elements).
• CSS adds the paint and furniture (background colors, text colors, borders).