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index.html
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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Simple Calculator</title>
<style>
body {
font-family: Arial, sans-serif;
background: url('lauren-mancke-aOC7TSLb1o8-unsplash.jpg') center center fixed;
background-size: cover;
display: flex;
align-items: center;
justify-content: center;
height: 100vh;
margin: 0;
}
#calculator {
background-color: rgb(241, 169, 169);
border-radius: 8px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
padding: 20px;
text-align: center;
}
input {
background-color:rgba(214, 214, 187, 0.959) ;
width: 90%;
padding: 10px;
margin-bottom: 10px;
font-size: 18px;
}
button {
background-color:rgb(97, 107, 128) ;
width: 45px;
height: 45px;
margin: 5px;
font-size: 18px;
cursor: pointer;
}
</style>
</head>
<body>
<div id="calculator">
<input type="text" id="display" disabled>
<br>
<button onclick="appendToDisplay('1')">1</button>
<button onclick="appendToDisplay('2')">2</button>
<button onclick="appendToDisplay('3')">3</button>
<button onclick="appendToDisplay('+')">+</button>
<br>
<button onclick="appendToDisplay('4')">4</button>
<button onclick="appendToDisplay('5')">5</button>
<button onclick="appendToDisplay('6')">6</button>
<button onclick="appendToDisplay('-')">-</button>
<br>
<button onclick="appendToDisplay('7')">7</button>
<button onclick="appendToDisplay('8')">8</button>
<button onclick="appendToDisplay('9')">9</button>
<button onclick="appendToDisplay('*')">*</button>
<br>
<button onclick="appendToDisplay('0')">0</button>
<button onclick="clearDisplay()">C</button>
<button onclick="calculate()">=</button>
<button onclick="appendToDisplay('/')">/</button>
</div>
<script>
function appendToDisplay(value) {
document.getElementById('display').value += value;
}
function clearDisplay() {
document.getElementById('display').value = '';
}
function calculate() {
try {
document.getElementById('display').value = eval(document.getElementById('display').value);
} catch (error) {
document.getElementById('display').value = 'Error';
}
}
</script>
</body>
</html>