使wordpress菜单悬停在颜色而不是空白

Question

我有一个使用主题15zine的wordpress网页。我想更改顶部菜单，使其徘徊成黄色。目前，当你盘旋时它只是空白。这是代码：

}
#cb-top-menu ul li:hover > ul {
  top: 100%;
  filter: progid:DXImageTransform.Microsoft.Alpha(enabled=false);
  opacity: 1;
  visibility: visible;
}
#cb-top-menu ul li:hover > ul li > ul {
  filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=0);
  opacity: 0;
  visibility: hidden;
  left: 100%;
  top: 0;
}
#cb-top-menu ul li:hover > ul li:hover > ul {
  filter: progid:DXImageTransform.Microsoft.Alpha(enabled=false);
  opacity: 1;
  visibility: visible;