Để triển khai hoạt ảnh trên thuộc tính border-top bằng CSS, bạn có thể thử chạy mã sau
Ví dụ
<!DOCTYPE html> <html> <head> <style> table,th,td { border: 1px solid black; } #newTable { width: 500px; height: 300px; background: yellow; border: 15px solid yellow; animation: myanim 3s infinite; background-position: bottom left; background-size: 50px; } @keyframes myanim { 30% { background-color: orange; border-right-color: red; border-right-width: 25px; border-spacing: 50px; border-top: 125px solid red; } } </style> </head> <body> <h2>Performing Animation for top border</h2> <table id = "newTable"> <tr> <th>Subject</th> <th>Student</th> <th>Marks</th> </tr> <tr> <td>Maths</td> <td>Amit</td> <td>98</td> </tr> <tr> <td>Science</td> <td>Sachin</td> <td>99</td> </tr> </table> </body> </html>