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How Do You Change the Size of a Tag in HTML?

Published in CSS Styling 2 mins read

You can change the size of an HTML tag, like an <i> tag, primarily by using CSS (Cascading Style Sheets).

Using CSS to Change Tag Size

The most common way to change the size of an HTML tag is by applying CSS rules. Here's how you can do it:

1. Inline CSS

You can directly add CSS to the HTML tag using the style attribute.

   <i style="font-size: 20px;">This is an example with inline styling.</i>

In this case, the font-size property changes the size of the italicized text.

2. Internal CSS (within the <head> tag)

You can embed CSS rules within the <head> section of your HTML using the <style> tag.

```html
<!DOCTYPE html>
<html>
<head>
<style>
    i {
        font-size: 24px;
    }
</style>
</head>
<body>
    <i>This is an example with internal styling.</i>
</body>
</html>
```
This affects all `<i>` tags on the page.

3. External CSS (recommended for large projects)

This is the most maintainable approach and involves creating an external CSS file and linking it to your HTML.

- First, create a file named `styles.css`
 ```css
    i {
         font-size: 24px;
    }
 ```
- Then, link to this file within your HTML's `<head>`:
    ```html
   <!DOCTYPE html>
    <html>
    <head>
       <link rel="stylesheet" href="styles.css">
    </head>
    <body>
       <i>This is an example with external styling.</i>
    </body>
    </html>
    ```

By using the font-size property in CSS, you can specify the exact size you want. As the reference mentions, this allows you to control how big your text in <i> tags appear.

Other Size-Related CSS Properties

While font-size is crucial for text, other properties also affect an element's apparent size:

  • width and height: Adjust the dimensions of block-level elements or inline-block elements.
  • padding and margin: Create spacing around and within the element, affecting its visual footprint.
  • line-height: Alters the vertical spacing between lines of text.

Example Table Showing Font-Sizes

Font Size Example
12px Small text
16px Default text size
20px Medium text size
24px Larger text size
30px Very large text size

Key Takeaway: Using the font-size property within CSS is the most direct method to modify the size of text within HTML tags such as <i>. External CSS files are recommended for larger projects to ensure better organization and easier maintenance.

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