<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
input {
font-size: 18px;
cursor: pointer;
border: none;
display: inline-block;
padding: 10px 20px;
}
input:focus {
outline: none;
box-shadow: none;
}
input::-moz-focus-inner {
border: 0;
}
</style>
</head>
<body>
<input type="button" value="Button">
</body>
</html>