I also included the hover pseudoclass since I had a problem that when I hovered over links with this class, they would turn the color of my link hover state, making the background image disappear.

我对悬停伪类(hover pseudoclass)也进行了设置，因为有一次当我悬停在该类的链接上时，会改变链接的悬停状态的颜色，从而背景图会消失。

youdao