应该是
#borderColorCorner {
border: 10px solid #dedede;
-moz-border-radius: 15px;
-webkit-border-radius: 15px;
border-radius: 15px;
-moz-border-bottom-colors: #303 #404 #606 #808 #909 #A0A;
-moz-border-top-colors: #303 #404 #606 #808 #909 #A0A;
-moz-border-left-colors: #303 #404 #606 #808 #909 #A0A;
-moz-border-right-colors: #303 #404 #606 #808 #909 #A0A;
-webkit-border-bottom-colors: #303 #404 #606 #808 #909 #A0A;
-webkit-border-top-colors: #303 #404 #606 #808 #909 #A0A;
-webkit-border-left-colors: #303 #404 #606 #808 #909 #A0A;
-webkit-border-right-colors: #303 #404 #606 #808 #909 #A0A;
border-bottom-colors: #303 #404 #606 #808 #909 #A0A;
border-top-colors: #303 #404 #606 #808 #909 #A0A;
border-left-colors: #303 #404 #606 #808 #909 #A0A;
border-right-colors: #303 #404 #606 #808 #909 #A0A;
padding: 15px 25px;
height: inherit;
width: 590px;
}