.x-tab.x-tab-active.x-tab-default-top,.x-tab.x-tab-active.x-tab-default-left,.x-tab.x-tab-active.x-tab-default-right {
background-image: -webkit-linear-gradient(top, #fff, #f5f9fe 25%, #fddee3 45%);
}
原文:https://www.cnblogs.com/wkk2020/p/12424375.html