<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
button {
background-color: #a2e0b3;
font-size: 24px;
border: none;
cursor: pointer;
outline: none;
margin: auto;
display: block;
}
</style>
</head>
<body>
<div>
<button type="submit">
Click here
</button>
</div>
</body>
</html>