How would you highlight the first sentence of the paragraph in the text box?

To highlight the first sentence of the paragraph in the text box, you can use a different color, font style, or font size to make it stand out. For example, you can bold the first sentence or change its color to make it more noticeable.

To highlight the first sentence of the paragraph in the text box, you can use CSS styles. Here's an example:

HTML

```html

This is the first sentence.

This is the second sentence.

```

CSS

```css
p:first-of-type {
background-color: yellow;
}
```

This CSS will apply a yellow background color to the first paragraph in the text box, highlighting the first sentence.

You can also use JavaScript to highlight the first sentence. Here's an example:

HTML

```html

This is the first sentence.

This is the second sentence.

```

JavaScript

```javascript
document.getElementById("first-sentence").style.backgroundColor = "yellow";
```

This JavaScript code will find the element with the ID "first-sentence" (which is the first paragraph) and set its background color to yellow, highlighting the first sentence.