CSS를 사용하여 border-top-width 속성에 애니메이션을 구현하려면 다음 코드를 실행해 보세요.
예시
<!DOCTYPE html> <html> <head> <style> div { width: 500px; height: 300px; background: yellow; border: 10px solid yellow; background-image: url('https://www.tutorialspoint.com/latest/Angular-4.png'); animation: myanim 3s infinite; background-position: bottom left; background-size: 50px; } @keyframes myanim { 20% { background-color: maroon; background-size: 90px; border-color: red; border-top-width: 50px; } } </style> </head> <body> <h2>Performing Animation for color of border</h2> <div></div> </body> </html>