King of JavaScript Online HTML Editor

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>My Quiz</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<link href="https://fonts.googleapis.com/css2?family=Roboto:wght@100;400;700&display=swap" rel="stylesheet">
<style>
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    background: #911ae2;
    font-family: 'Roboto', sans-serif;
}

.start_quiz{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    border: 2px solid #fff;
    padding: 10px 30px;
    color: #fff;
    border-radius: 10px;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s;
}
.start_quiz:hover{
    background: #fff;
    color: #911ae2;
}
  </style>
</head>
<body>
    <div class="start_quiz">Start Quiz</div>
</body>
</html>