To achieve this effect, you would use CSS (Cascading Style Sheets) to style your div element. Here's how you can do it:

1. First, define your div element with its initial size and color. For example:

```css
div {
width: 100px;
height: 100px;
background-color: red;
transition: width 2s;
}
```
In this example, the div is initially 100px by 100px in size, and it's red. The `transition` property is set to change the `width` over a period of `2s` (2 seconds). You can adjust the time as needed.

2. Next, define what should happen when the user hovers over the div. You do this with the `:hover` pseudo-class. For example:

```css
div:hover {
width: 300%;
}
```
In this example, when the user hovers over the div, the width will gradually increase to 300% of the original size, over the period of time specified in the `transition` property (2 seconds in this case).

So, to answer your question, you should type `width 2s` in the blank space to specify that the width should transition over a period of 2 seconds. You can replace `2s` with whatever time period you want the transition to occur over.

Question

To achieve this effect, you would use CSS (Cascading Style Sheets) to style your div element. Here's how you can do it:

1. First, define your div element with its initial size and color. For example:

```css
div {
  width: 100px;
  height: 100px;
  background-color: red;
  transition: width 2s;
}
```
In this example, the div is initially 100px by 100px in size, and it's red. The `transition` property is set to change the `width` over a period of `2s` (2 seconds). You can adjust the time as needed.

2. Next, define what should happen when the user hovers over the div. You do this with the `:hover` pseudo-class. For example:

```css
div:hover {
  width: 300%;
}
```
In this example, when the user hovers over the div, the width will gradually increase to 300% of the original size, over the period of time specified in the `transition` property (2 seconds in this case).

So, to answer your question, you should type `width 2s` in the blank space to specify that the width should transition over a period of 2 seconds. You can replace `2s` with whatever time period you want the transition to occur over.

Knowee AI · Accepted Answer

To achieve this effect, you would use CSS (Cascading Style Sheets) to style your div element. Here's how you can do it:

1. First, define your div element with its initial size and color. For example:

```css
div {
  width: 100px;
  height: 100px;
  background-color: red;
  transition: width 2s;
}
```
In this example, the div is initially 100px by 100px in size, and it's red. The `transition` property is set to change the `width` over a period of `2s` (2 seconds). You can adjust the time as needed.

2. Next, define what should happen when the user hovers over the div. You do this with the `:hover` pseudo-class. For example:

```css
div:hover {
  width: 300%;
}
```
In this example, when the user hovers over the div, the width will gradually increase to 300% of the original size, over the period of time specified in the `transition` property (2 seconds in this case).

So, to answer your question, you should type `width 2s` in the blank space to specify that the width should transition over a period of 2 seconds. You can replace `2s` with whatever time period you want the transition to occur over.

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