How to set border size in css

In CSS, use the border-width property to set the border size. The available units are px, em, pt, cm or %. You can set a uniform width for all borders, or set the width individually for specific borders.

CSS Setting Border Size

Setting border size in CSS is a simple process that requires usingborder-width attribute. The value of this property can be in the following units:

• px (pixels)
• em (relative to the current font size)
• pt (points)
• cm (centimeters)
• % (relative to parent element width)

To set the width of all borders, you can use the border-width attribute, followed by A border size value, such as:

border-width: 2px;

To set the width of a specific border individually, you can use border-top-width, border-right-width, border-bottom-width and border-left-width attributes, and add a border size value after them, such as:

border-top-width: 10px;
border-right-width: 5px;
border-bottom-width: 2px;
border-left-width: 8px;

Example:

The following CSS code sets the element's border size to 5 pixels:

div {
  border-width: 5px;
}

The following CSS code sets the element's top border size to 10 pixels and the right border size to 5 pixels, Set the bottom border size to 2 pixels and the left border size to 8 pixels:

div {
  border-top-width: 10px;
  border-right-width: 5px;
  border-bottom-width: 2px;
  border-left-width: 8px;
}

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