css animate background color change

1#content #nav a {
2    background-color: #FF0;
3    
4    -webkit-transition: background-color 1000ms linear;
5    -moz-transition: background-color 1000ms linear;
6    -o-transition: background-color 1000ms linear;
7    -ms-transition: background-color 1000ms linear;
8    transition: background-color 1000ms linear;
9}
10
11#content #nav a:hover {
12    background-color: #AD310B;
13}