Border Width
CSS Border Width
The width of each of the four borders is specified by the border-width attribute.
The width can be set using one of the three pre-defined values—thin, medium, or thick—or as a specified dimension (in pixels, points, centimeters, em, etc.):
Example
Demonstration of the different border widths:
p.one {
border-style: solid;
border-width: 5px;
}
p.two {
border-style: solid;
border-width: medium;
}
p.three {
border-style: dotted;
border-width: 2px;
}
p.four {
border-style: dotted;
border-width: thick;
}
Result:
5px border-width
medium border-width
2px border-width
thick border-width
Specific Side Widths
For the top border, right border, bottom border, and left border, the border-width attribute can have one to four values:
Example
p.one {
border-style: solid;
border-width: 5px 20px; /* 5px top and bottom, 20px on the sides */
}
p.two {
border-style: solid;
border-width: 20px 5px; /* 20px top and bottom, 5px on the sides */
}
p.three {
border-style: solid;
border-width: 25px 10px 4px 35px; /* 25px top, 10px right, 4px bottom and 35px left */
}
