Modern calculator
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Modern Calculator App</title>
<style>
body {
margin: 0;
padding: 0;
background: linear-gradient(135deg, #4f46e5, #3b82f6);
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.calculator {
background: white;
border-radius: 20px;
box-shadow: 0 8px 20px rgba(0,0,0,0.2);
width: 320px;
padding: 20px;
}
.display {
width: 100%;
height: 60px;
background: #f1f5f9;
border-radius: 10px;
text-align: right;
font-size: 2em;
padding: 10px;
box-sizing: border-box;
overflow-x: auto;
}
.buttons {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 10px;
margin-top: 20px;
}
button {
padding: 15px;
font-size: 1.2em;
border: 2px solid #3b82f6;
border-radius: 12px;
background: white;
color: #3b82f6;
cursor: pointer;
transition: all 0.2s ease;
}
button:hover {
background: #e0f2fe;
transform: scale(1.05);
}
button:active {
background: #bfdbfe;
transform: scale(0.95);
}
.operator {
background: #3b82f6;
color: white;
}
.operator:hover {
background: #2563eb;
}
.equal {
grid-column: span 2;
background: #10b981;
color: white;
border-color: #10b981;
}
.equal:hover {
background: #059669;
}
@media (max-width: 400px) {
.calculator {
width: 90%;
}
button {
padding: 12px;
font-size: 1em;
}
}
</style>
</head>
<body>
<div class="calculator">
<div class="display" id="display">0</div>
<div class="buttons">
<button onclick="clearDisplay()">C</button>
<button onclick="deleteLast()">⌫</button>
<button onclick="appendValue('%')">%</button>
<button class="operator" onclick="appendValue('/')">÷</button>
<button onclick="appendValue('7')">7</button>
<button onclick="appendValue('8')">8</button>
<button onclick="appendValue('9')">9</button>
<button class="operator" onclick="appendValue('*')">×</button>
<button onclick="appendValue('4')">4</button>
<button onclick="appendValue('5')">5</button>
<button onclick="appendValue('6')">6</button>
<button class="operator" onclick="appendValue('-')">−</button>
<button onclick="appendValue('1')">1</button>
<button onclick="appendValue('2')">2</button>
<button onclick="appendValue('3')">3</button>
<button class="operator" onclick="appendValue('+')">+</button>
<button onclick="appendValue('0')">0</button>
<button onclick="appendValue('.')">.</button>
<button class="equal" onclick="calculate()">=</button>
</div>
</div>
<script>
const display = document.getElementById('display');
function appendValue(val) {
if (display.innerText === '0') {
display.innerText = val;
} else {
display.innerText += val;
}
}
function clearDisplay() {
display.innerText = '0';
}
function deleteLast() {
if (display.innerText.length > 1) {
display.innerText = display.innerText.slice(0, -1);
} else {
display.innerText = '0';
}
}
function calculate() {
try {
let result = eval(display.innerText.replace(/÷/g, '/').replace(/×/g, '*'));
display.innerText = result;
} catch {
display.innerText = 'Error';
}
}
</script>
</body>
</html>
Comments
Post a Comment