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css
css
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* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body::before {
content: "Hello, CSS without HTML!";
display: block;
font-size: 30px;
text-align: center;
color: white;
background: black;
padding: 20px;
animation: fadeIn 3s ease-in-out;
}
:root {
--primary-color: blue;
--font-size: 20px;
}
@keyframes fadeIn {
from {
opacity: 0;
}
to {
js
js
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