Responsive Colorful Calculator App
About this app
A responsive colorful calculator app with clear display of results and user-friendly interface.
Responsive Colorful Calculator App C ( ) % / * - + 7 8 9 4 0 1 2 3 = .
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Put this on your site
Source
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>Responsive Colorful Calculator App</title>
<meta name="description" content="A responsive colorful calculator app with clear display of results and user-friendly interface.">
<meta name="keywords" content="calculator, colors, math, results, mobile app, fun interface">
<style>
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');
body {
background: linear-gradient(135deg, #a8e1f3, #f2e29d);
font-family: 'Roboto', sans-serif;
}
#main-container {
padding: 20px;
box-shadow: 0 0 10px rgba(0,0,0,0.1);
border-radius: 10px;
background-color: #ffffff;
}
#display {
background-color: #c8e6c9;
border-radius: 5px;
padding: 20px;
font-size: 2rem;
text-align: right;
color: #2e7d32;
margin-bottom: 20px;
}
.calc-button {
font-size: 1.5rem;
background-color: #3f51b5;
color: white;
border: none;
margin: 5px;
border-radius: 5px;
padding: 15px;
width: 70px;
transition: background-color 0.3s;
}
.calc-button:hover {
background-color: #303f9f;
}
#error-display {
color: red;
font-size: 1.5rem;
text-align: center;
}
</style>
<script>
document.addEventListener("DOMContentLoaded", function () {
const btns = document.querySelectorAll('.calc-button');
const display = document.getElementById('display');
const errorDisplay = document.getElementById('error-display');
let currentInput = '';
btns.forEach(btn => {
btn.addEventListener('click', function () {
const value = btn.innerText;
if (value === '=') {
try {
const result = eval(currentInput);
display.innerText = result; // Show result on the display
errorDisplay.innerText = ''; // clear error
} catch (e) {
errorDisplay.innerText = 'Error';
display.innerText = ''; // clear display
currentInput = ''; // reset input on error
}
} else if (value === 'C') {
currentInput = ''; // clear input
display.innerText = '';
errorDisplay.innerText = '';
} else {
currentInput += value; // append to input
display.innerText = currentInput; // show current input on display
}
});
});
});
</script>
</head>
<body>
<div id="main-container" class="container">
<div id="display"></div>
<div id="error-display"></div>
<div class="d-flex flex-wrap">
<button class="calc-button">C</button>
<button class="calc-button">(</button>
<button class="calc-button">)</button>
<button class="calc-button">%</button>
<button class="calc-button">/</button>
<button class="calc-button">*</button>
<button class="calc-button">-</button>
<button class="calc-button">+</button>
<button class="calc-button">7</button>
<button class="calc-button">8</button>
<button class="calc-button">9</button>
<button class="calc-button">4</button>
<button class="calc-button">0</button>
<button class="calc-button">1</button>
<button class="calc-button">2</button>
<button class="calc-button">3</button>
<button class="calc-button">=</button>
<button class="calc-button">.</button>
</div>
</div>
</body>
</html>
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