CSS Borders

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Border Style

The border-style property specifies what kind of border to display.
The following values are allowed:

• dotted - Defines a dotted border
• dashed - Defines a dashed border
• solid - Defines a solid border
• double - Defines a double border
• groove - Defines a 3D grooved border. The effect depends on the border-color value
• ridge - Defines a 3D ridged border. The effect depends on the border-color value
• inset - Defines a 3D inset border. The effect depends on the border-color value
• outset - Defines a 3D outset border. The effect depends on the border-color value
• none - Defines no border
• hidden - Defines a hidden border

The border-style property can have from one to four values (for the top border, right border, bottom border, and the left border).

Example

p.dotted {border-style: dotted;}
p.dashed {border-style: dashed;}
p.solid {border-style: solid;}
p.double {border-style: double;}
p.groove {border-style: groove;}
p.ridge {border-style: ridge;}
p.inset {border-style: inset;}
p.outset {border-style: outset;}
p.none {border-style: none;}
p.hidden {border-style: hidden;}
p.mix {border-style: dotted dashed solid double;}

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Result:

A dotted border.

A dashed border.

A solid border.

A double border.

A groove border. The effect depends on the border-color value.

A ridge border. The effect depends on the border-color value.

An inset border. The effect depends on the border-color value.

An outset border. The effect depends on the border-color value.

No border.

A hidden border.

A mixed border.

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Border Width

The border-width property specifies the width of the four borders.
The width can be set as a specific size (in px, pt, cm, em, etc) or by using one of the three pre-defined values: thin, medium, or thick.
The border-width property can have from one to four values (for the top border, right border, bottom border, and the left border).

5px border-width

Example

p.one {
    border-style: solid;
    border-width: 5px;
}

p.two {
    border-style: solid;
    border-width: medium;
}

p.three {
    border-style: solid;
    border-width: 2px 10px 4px 20px;
}

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Border Color

The border-color property is used to set the color of the four borders.
The color can be set by:

• name - specify a color name, like "red"
• Hex - specify a hex value, like "#ff0000"
• RGB - specify a RGB value, like "rgb(255,0,0)"
• transparent

The border-color property can have from one to four values (for the top border, right border, bottom border, and the left border).
If border-color is not set, it inherits the color of the element.

Red border

Example

p.one {
    border-style: solid;
    border-color: red;
}

p.two {
    border-style: solid;
    border-color: green;
}

p.three {
    border-style: solid;
    border-color: red green blue yellow;}

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Border - Individual Sides

From the examples above you have seen that it is possible to specify a different border for each side.
In CSS, there are also properties for specifying each of the borders (top, right, bottom, and left):

Different Border Styles

Example

p {
    border-top-style: dotted;
    border-right-style: solid;
    border-bottom-style: dotted;
    border-left-style: solid;
}

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Border - Shorthand Property

As you can see from the examples above, there are many properties to consider when dealing with borders.
To shorten the code, it is also possible to specify all the individual border properties in one property.
The border property is a shorthand property for the following individual border properties:

• border-width
• border-style (required)
• border-color

Example

p {
    border: 5px solid red;}

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Result:

Some text

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You can also specify all the individual border properties for just one side:

Example

p {
    border-left: 6px solid red;
    background-color: lightgrey;}

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Result:

Some text

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Left Border

p {
    border-left: 6px solid red;
    background-color: lightgrey;}

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Result:

Some text

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Bottom Border

p {
    border-bottom: 6px solid red;
    background-color: lightgrey;}

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Result:

Some text

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Rounded Borders

The border-radius property is used to add rounded borders to an element:

Normal border

Round border

Rounder border

Roundest border

Example

p {
    border: 2px solid red;
    border-radius: 5px;}

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