I'm using the following background css in a menu:
background: -webkit-linear-gradient(left, #0260a9, #444); /* For Safari 5.1 to 6.0 */
background: -o-linear-gradient(left, #0260a9, #444); /* For Opera 11.1 to 12.0 */
background: -moz-linear-gradient(left, #0260a9, #444); /* For Firefox 3.6 to 15 */
background: linear-gradient(left, #0260a9, #444); /* Standard syntax */
However, in browsers (like IE) that it does not work, the menu runs out of background. I wonder if it is possible to add an optional color if the browser does not understand this property, as if it were a default color, background. I know I have two options: make the property compatible with all or add that second solid color option. How to act?