标签：nbsp utf-8 body html 延迟 bsp ack 显示 meta
<html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <style> div{ transition: 0s background-color; } div:hover{ background-color:red; transition-delay:3s; } </style> <div>延迟hover显示时间（鼠标悬停此处，3秒后显示红色背景）</div> </body> </html>
标签：nbsp utf-8 body html 延迟 bsp ack 显示 meta
原文地址：https://www.cnblogs.com/fujie818/p/14100807.html
