<p> Di chuột qua phần tử div bên dưới: </p>
<div></div>
div {
width: 100px;
height: 100px;
background: red;
transition: width 2s, height 2s, transform 2s;
}
div:hover {
width: 300px;
height: 300px;
transform: rotate(180deg);
}
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