CSS Borders

The border properties allow you to specify how the border of the box representing an element should look. There are three properties of a border you can change:

The border-color specifies the color of a border.

The border-style specifies whether a border should be solid, dashed line, double line, or one of the other possible values.

The border-width specifies the width of a border.

CSS Border Properties

The border-color property allows you to change the color of the border surrounding an element. You can individually change the color of the bottom, left, top and right sides of an element's border using the properties −

border-bottom-color changes the color of bottom border.

border-top-color changes the color of top border.

border-left-color changes the color of left border.

border-right-color changes the color of right border.

Border Style

The border-style property specifies what kind of border to display.

The following values are allowed:

dashed - Defines a dashed border

dotted - Defines a dotted 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

inset - Defines a 3D inset border. The effect depends on the border-color value

ridge - Defines a 3D ridged 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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Border Width

The border-width property allows you to set the width of an element borders. The value of this property could be either a length in px, pt or cm or it should be set to thin, medium or thick.

You can individually change the width of the bottom, top, left, and right borders of an element using the following properties −

border-bottom-width changes the width of bottom border.

border-top-width changes the width of top border.

border-left-width changes the width of left border.

border-right-width changes the width of right border.

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).

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.

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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Left Border

Example -

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

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Bottom Border

Example -

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

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Rounded Borders

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

Example -

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

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