Learn CSS Borders: A Complete Guide to Styling Web Elements

Borders are used to create a visual boundary around an HTML element. You can set the width, color, and style of a border using CSS properties.

As an example:

In this example:

The border property is a shorthand property that allows you to set the width, style, and color of a border all at once.
The value 1px sets the width of the border to 1 pixel, solid sets the style to a solid line, and black sets the color to black.

You can also use separate border properties to set different values for the width, style, and color.

As an example:

In this example:

We use the border-width, border-style, and border-color properties to set the width, style, and color of the border separately.

You can also set borders on individual sides of an element using the border-top, border-right, border-bottom, and border-left properties.

As an example:

In this example:

Sets a green border on the top and bottom of a div element using the border-top and border-bottom properties.

The `border-radius`

Border radius creates rounded corners on an HTML element.

As an example:

In this example:

border-radius: 10px; sets the corner radius of the element to 10 pixels.
border: 2px solid red; sets a 2-pixel wide solid red border around the element.