点击运行
<!DOCTYPE html> <html> <head> <style> h1 { color: yellow; text-shadow: -1px 0 black, 0 1px black, 1px 0 black, 0 -1px black; } </style> </head> <body> <h1>围绕文本的边框！</h1> </body> </html>
运行结果
