CSS Border Properties
The CSS border
properties allow you to specify the style, width, and color of an element's border.
CSS background properties:
I have borders on all sides.
I have a red bottom border.
I have rounded borders.
I have a blue left border.
CSS Border Style
The border-style
property specifies what kind of border to display.
The following values are allowed:
dotted
- Defines a dotted borderdashed
- Defines a dashed bordersolid
- Defines a solid borderdouble
- Defines a double bordergroove
- Defines a 3D grooved border. The effect depends on the border-color valueridge
- Defines a 3D ridged border. The effect depends on the border-color valueinset
- Defines a 3D inset border. The effect depends on the border-color valueoutset
- Defines a 3D outset border. The effect depends on the border-color valuenone
- Defines no borderhidden
- 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).
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;}
This is how the HTML code above will be displayed in a browser:
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 mixed border.
CSS 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
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;
}
CSS 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
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;
}
CSS 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
p {
border-top-style: dotted;
border-right-style: solid;
border-bottom-style: dotted;
border-left-style: solid;
}
So, here is how it works:
If the border-style
property has four values:
- border-style: dotted solid double dashed;
- top border is dotted
- right border is solid
- bottom border is double
- left border is dashed
If the border-style
property has three values:
- border-style: dotted solid double;
- top border is dotted
- right and left borders are solid
- bottom border is double
If the border-style
property has two values:
- border-style: dotted solid;
- top and bottom borders are dotted
- right and left borders are solid
If the border-style
property has one value:
- border-style: dotted;
- all four borders are dotted
The border-style
property is used in the example above. However, it also works with border-width
and border-color
.
CSS 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
CSS Rounded Borders
The border-radius
property is used to add rounded borders to an element:
Normal border
Round border
Rounder border
Roundest border
All CSS Border Properties
Property | Description |
---|---|
border | Sets all the border properties in one declaration |
border-bottom | Sets all the bottom border properties in one declaration |
border-bottom-color | Sets the color of the bottom border |
border-bottom-style | Sets the style of the bottom border |
border-bottom-width | Sets the width of the bottom border |
border-color | Sets the color of the four borders |
border-left | Sets all the left border properties in one declaration |
border-left-color | Sets the color of the left border |
border-left-style | Sets the style of the left border |
border-left-width | Sets the width of the left border |
border-radius | Sets all the four border-*-radius properties for rounded corners |
border-right | Sets all the right border properties in one declaration |
border-right-color | Sets the color of the right border |
border-right-style | Sets the style of the right border |
border-right-width | Sets the width of the right border |
border-style | Sets the style of the four borders |
border-top | Sets all the top border properties in one declaration |
border-top-color | Sets the color of the top border |
border-top-style | Sets the style of the top border |
border-top-width | Sets the width of the top border |
border-width | Sets the width of the four borders |