<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
#point:after{
content:"\000C3";
}
</style>
</head>
<body>
<p>Uppercase A Tilde using Hexa Decimal: Ã</p>
<p>Uppercase A Tilde using HTML Code: Ã</p>
<p>Uppercase A Tilde using HTML Entity: Ã</p>
<p id="point">Uppercase A Tilde using CSS Entity: </p>
</body>
</html>