border-image不会在IE / Firefox中显示

Question

border-image在IE和Firefox中不起作用。在Chrome和Opera中一切正常，但我找不到我犯的错误。这是代码：

-moz-border-image: url(../images/background.png) 204 194 204 200 stretch repeat;
-webkit-border-image: url(../images/background.png) 204 194 204 200 stretch repeat;
-o-border-image: url(../images/background.png) 204 194 204 200 stretch repeat;
 border-image: url(../images/background.png) 204 194 204 200 stretch repeat;
 border-width: 104px;
 border-style: solid;