IE10下链接点击时背景色会变成灰色

IE10下,链接点击时,背景色会变成灰色,
影响到的平台:window
解决方法:
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {
a{background-color:transparent;}
}
详情请查看:
http://msdn.microsoft.com/library/windows/apps/Hh465764