how to style an hr tag

1/* Red border */
2hr.new1 {
3  border-top: 1px solid red;
4}
5
6/* Dashed red border */
7hr.new2 {
8  border-top: 1px dashed red;
9}
10
11/* Dotted red border */
12hr.new3 {
13  border-top: 1px dotted red;
14}
15
16/* Thick red border */
17hr.new4 {
18  border: 1px solid red;
19}
20
21/* Large rounded green border */
22hr.new5 {
23  border: 10px solid green;
24  border-radius: 5px;
25}