运行 ❯
获取您
自己的
网站
×
更改方向
保存代码
更改主题，深色/浅色
前往 Spaces
<!DOCTYPE html> <html> <head> <style> [class|="top"] { background: yellow; } </style> </head> <body> <h1>Demo of the [attribute|=value] selector</h1> <p>Elements with a class attribute with value "top" is styled with a yellow background:</p> <h1 class="top-header">Welcome</h1> <p class="top-text">Hello world!</p> <p class="content">Are you learning CSS?</p> </body> </html>
