Commit ebb6fc3

<!DOCTYPE html>

<html>

<head>

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">

<style>

.fa {

font-size: 50px;

cursor: pointer;

user-select: none;

}

.fa:hover {

color: darkblue;

}

</style>

</head>

<body>

<p>Click on the icon to toggle between thumbs-up and thumbs-down (like/dislike):</p>

<i onclick="myFunction(this)" class="fa fa-thumbs-up"></i>

<script>

function myFunction(x) {

x.classList.toggle("fa-thumbs-down");

}

</script>

</body>

</html>