<style>
.square {
width: 100px;
height: 100px;
background-color: #FF5722;
transition: transform 0.5s;
}
.rotate {
transform: rotate(45deg);
}
</style>
</head>
<body>
<a href="#" onClick="window.history.go(-1);">Home</a><br>
<div class="square" id="square"></div>
<button onclick="document.getElementById('square').classList.toggle('rotate')">Ruota</button>