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<style>
div {
width: 100px;
height: 100px;
background-color: rgb(74, 194, 154);
transition: all 0.5s linear;
}
</style>
<div></div>
<script>
window.onload = function() {
var div = document.querySelector("div");
setTimeout(function() {
div.style.width = "200px";
div.style.height = "150px";
div.style.backgroundColor = "rgb(216, 139, 38)";
}, 2000);
};
</script>
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