关于hover选择器:
1:改变选择元素本身
.xxx:hover{}
2:改变元素的子无素
.xxx:hover xxx{}
3:改变元素的相邻元素
.xxx:hover +xxx{}
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <style> .show{ width:100px; height:100px; background:#dddd; } .hidden{ width:100px; height:100px; background:black; display:none; } .show:hover +.hidden{ display:block; } </style> </head> <body> <div class="test"> <div class="show"></div> <div class="hidden"></div> </div> </body> </html>
Document
nihao
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