<!DOCTYPE html>
<html>
<head>
<title>Temperature Converter</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<style type="text/css">
body{ padding: 50px 100px;
}
h1{ text-align: center;
}
#container{
text-align: center;
background: #1abc9c;
padding: 50px;
}
.input-div{ display: inline-block;
}
.inp{
padding: 5px 10px;
margin: 10px;
font-size: 5vh;
width: 250px;
text-align: center;
font-weight: bold;
}
label{ font-size: 22px;
}
</style>
</head>
<body>
<h1>Temperature Converter</h1>
<div id="container">
<div class="input-div">
<label>Celsius</label><br>
<input type="number" value="0" id="cel" class="inp">
</div>
<div class="input-div">
<label>Fahrenhet</label><br>
<input type="number" value="32" id="fah" class="inp">
</div>
</div>
<script type="text/javascript">
var cel=document.getElementById('cel');
var fah=document.getElementById('fah');
cel.addEventListener('input',function(){
let c=this.value;
let f=(c * 9/5)+32;
if (!Number.isInteger(f)) {
f=f.toFixed(4);
}
fah.value=f;
});
fah.addEventListener('input',function(){
let f=this.value;
let c=(f-32)*5/9;
if (!Number.isInteger(c)) {
c=c.toFixed(4);
}
cel.value=c;
})
</script>
</body>
</html>
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