<!DOCTYPE html>
<html>
<head>
<title>Penjumlahan 2 Variabel</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
.box {
width: 40%;
border-radius: 5px;
border: 1px solid #9b9b9b;
padding: 20px 0px 20px 0px;
margin-left: 30%;
}
.h2{
font-family: calibri;
font-weight: lighter;
letter-spacing: 3px;
}
#bil1{
padding: 5px;
}
#bil2{
padding: 5px;
}
#hasil{
color: #ff0b0b;
}
</style>
</head>
<body>
<div class="box">
<center>
<h2 class="h2">Aplikasi Penjumlahan 2 bilangan</h2>
<div class="box1">
<label>Bil 1</label>
<input type="text" id="bil1" placeholder="Masukan bilangan 1">
</div>
<br>
<div class="box2">
<label>Bil 2</label>
<input type="text" id="bil2" placeholder="Masukan bilangan 2">
</div>
<div class="box3">
<label>Hasil</label>
<label id="hasil"></label>
</div>
<br>
<input type="button" id="btn" value="Jumlah" class="btn" onClick="jumlah()">
</center>
</div>
<script>
function jumlah(){
var a = document.getElementById("bil1").value;
var b = document.getElementById("bil2").value;
document.getElementById("hasil").innerHTML = parseFloat(a) + parseFloat(b);
}
</script>
</body>
</html>
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