【图形】CSS绘制长方形
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <base target="_blank" /> <title>三十客 - 【图形】CSS绘制长方形</title> <style> #rectangle { width: 250px; height: 150px; background: red; } </style> </head> <body> <div id="rectangle"></div> </body> </html>