css3实现边框border的颜色渐变

给一个右边框实现 颜色渐变。中间深两边浅

.box{border-right: 1px solid;border-image: -webkit-linear-gradient(#F8F8F8 , #AAA , #F8F8F8)1 10 1; /* 控制边框颜色渐变 */border-image: -moz-linear-gradient(#F8F8F8 , #AAA , #F8F8F8)1 10 1;border-image: linear-gradient(#F8F8F8 , #AAA , #F8F8F8)1 10 1; /* 标准的必须写在最后 */}