1element {
2 border-width: 10px;
3 /* Or use shorthand border property */
4 /* width style colour */
5 border: 10px solid black;
6}
1#some-div {
2 /* [WIDTH] [FILL MODE] [COLOR] */
3 border: 5px solid #f00;
4
5 /* draws solid a red line of 5px
6 between the padding (inside the div)
7 and the margin (outside the div) */
8}