in html you can refer to an external style sheet code example
Example: how to refer to external style sheet
<html>
<head>
<link rel="stylesheet" type="text/css" href="Name.css">
</head>
<body>
.
.
.
</body>
<html>
<head>
<link rel="stylesheet" type="text/css" href="Name.css">
</head>
<body>
.
.
.
</body>