Common ways of specifying border properties in CSS include the following:
border-style
The border-style property defines the format of the border. The table below shows the possible values and how each one renders.| CSS Declaration | Output |
| p {border-style:solid;} | Solid Border |
| p {border-style:dashed;} | Dashed Border |
| p {border-style:double;} | Double Border |
| p {border-style:dotted;} | Dotted Border |
| p {border-style:groove;} | Groove Border |
| p {border-style:ridge;} | Ridge Border |
| p {border-style:inset;} | Inset Border |
| p {border-style:outset;} | Outset Border |
border-width
The border-width property specifies the width of the border. The value can be "thin", "medium", "thick", or a numerical width.| CSS Declaration | Output |
| p {border-width:9px; border-style:solid;} | Border Width 9px |
| p {border-width:medium; border-style:dashed;} | Border Width Medium |
border-color
The border-color property specifies the color of the border.Examples below:
| CSS Declaration | Output |
| p {border-color:#0000FF; border-style:solid;} | Border Color Blue |
| p {border-color:red; border-style:dotted;} | Border Color Red |
border-top-, border-left-, border-bottom-, border-right-
Directions (top, left, bottom, right) can be combined with style, width, and color to form a 3-part CSS command. For example, border-top-style specifies the style of the top border. Some examples below:| CSS Declaration | Output |
| p {border-top-style:solid; border-bottom-style:dotted;} | Sample 1 |
| p {border-top-style:solid; border-top-width:medium;} | Sample 2 |
| p {border-left-style:solid; border-bottom-style:dashed; border-bottom-color:#00FF00;} | Sample 3 |
border
If the characteristics for all 4 sides of the border are the same, they can be combined into a single line using theborder property. In addition, all three border properties (border-style, border-width, and border-color) can be combined into a single line with the border command.For example, with the CSS declaration,
| p { border:#0000FF 5px solid; } |
The following HTML,
| <p>A single line declares all border properties.</p> |
yields the output below:
A single line declares all border properties.








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