JS Base 64 Encoding/Decoding Web Application SRC V3 SRC

<html>
<body bgcolor="skyblue">
<font color="white">
<center>
<title>Base64 Encoder/Decoder</title>
<font color="darkblue">
<header>

<b><i>
<p><h2>Base64 Encoder/Decoder</p</h2>
</header>
<button style="background-color:skyblue;color:white;width:180px;height:28px" onclick="javascript:Test();"><b><i><font size="53"></font>Base64 Encode String </button>
<p>
<button style="background-color:skyblue;color:white;width:180px;height:28px" onclick="javascript:Test1();"><b><i>Base64 Decode String</button>
<p id="testing">
</font>
</body>
</html>
<script>
function Test(){
var str=prompt('Please Enter A String Value:');
var rep=str.replace("<","");
var enc=btoa(rep);
var dec=atob(enc);
document.getElementById('testing').innerText="Input String:\n"+rep +"\nOutput String:\n" +enc;
}
</script>

<script>
function Test1(){
var str=prompt('Please Enter A String Value:');
var rep=str.replace("<","");
var enc=atob(rep);
var dec=atob(enc);
document.getElementById('testing').innerText="Input String:\n"+rep +"\nOutput String:\n" +dec;
}
</script>
<center><font color="maroon"><font size="3px">Coded By DJ BrÜ &copy 2015-2016</font></center>