In CSS, you can control the border of specific sides (top, right, bottom, left) of an element using the `border-top`, `border-right`, `border-bottom`, and `border-left` properties. Each of these properties allows you to set the border style, width, and color for the corresponding side of the element.
Here's an example of how you can apply borders to specific sides of an element:
```css
element {
border-top: 1px solid red; /* Top border */
border-right: 2px dashed blue; /* Right border */
border-bottom: 3px dotted green; /* Bottom border */
border-left: 4px double orange; /* Left border */
}
```
In the example above, each `border-` property is followed by the border style, width, and color. You can customize these values to achieve the desired border effect for each side of the element. If you want the same style for all sides, you can use the `border` shorthand property, like this:
```css
element {
border: 2px solid purple; /* All sides with the same border style */
}
```
Feel free to adjust the values and colors to match your design preferences.
