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爲什麼這不起作用?我想在開始時,我的元素類將不可見,並逐漸顯現出來。爲什麼這個動畫/轉換不起作用?
HTML:
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="style.css">
<meta charset="utf-8">
</head>
<body>
<div class="element"></div>
</body>
</html>
和我的CSS:
.element {
width: 200px;
height: 200px;
background: purple;
transition-duration: 3s;
-webkit-transition-duration: 3s;
animation-name: coucou;
}
@keyframes coucou {
from {
opacity: 0;
}
to {
opacity: 1;
}
}