Https://learn.freecodecamp.org/responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button

button { border-radius: 5px; color: white; background-color: #0F5897; padding: 5px 10px 8px 10px; } button:hover { animation-name: background-color; animation-duration: 500ms; } @keyframes background-color { 100% } { background-color: #4791d0; }

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This won’t pass HELP

dont use the curly bracket after 100%

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then add another bracket at the end of the background color.

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