想把鼠标悬停在“用户”上时表格会显现出来，可是为什么以下代码不能实现？到底哪里错了好烦躁呀！
html<!DOCTYPE html> <html> <head lang="en"> <meta charset="UTF-8"> <title></title> <style> table{ visibility: hidden; } a:hover table{ visibility: visible; } </style> </head> <body> <p> <a href="">用户</a> <table> <tr> <td> <a href="">好友</a> </td> </tr> <tr> <td> <a href="">关注</a> </td></tr> <tr> <td> <a href="">设置</a> </td> </tr> <tr> <td> <a href="">消息</a> </td> </tr> </table> </p> </body> </html>
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The css selector is used incorrectly
represents a ancestor element that is a
aelement, and theaelement whose status ishoveris visible.tableFor your html, theelement is the
atablesibling element of the element and should be: