<!doctype html> <html> <head> <meta charset="utf-8"> <title>进行中...</title> <style> dot { display:inline-block; width:3ch; text-indent:-1ch; vertical-align:bottom; overflow:hidden; animation:dot 3s infinite step-start both; } @keyframes dot { 33% { text-indent: 0; } 66% { text-indent: -2ch; } } </style> </head> <body> <a href="java script:">进行中<dot>...</dot></a> </body> </html>