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<!DOCTYPE html> <html> <head> <title>Xem ví dụ</title> <style type="text/css"> h1{ border:1px solid black; } </style> </head> <body> <h1 style="background-color:red">Hello 1</h1> <h1 style="background-color:rgb(51,140,66)">Hello 2</h1> <h1 style="background-color:#6146F3">Hello 3</h1> <h1 style="background-color:initial">Hello 4</h1> </body> </html>
<!DOCTYPE html> <html> <head> <title>Xem ví dụ</title> <style type="text/css"> h1{ border:1px solid black; } </style> </head> <body> <h1 style="background-color:red">Hello 1</h1> <h1 style="background-color:rgb(51,140,66)">Hello 2</h1> <h1 style="background-color:#6146F3">Hello 3</h1> <h1 style="background-color:initial">Hello 4</h1> </body> </html>