Calculator App
A Calculator App is a simple and essential web application that performs basic arithmetic operations like addition, subtraction, multiplication & division. It helps users quickly solve mathematical problems through an interactive & user-friendly interface. Built using web technologies like HTML, CSS & JavaScript the calculator provides real-time results.Project code :
<!DOCTYPE html><html>
<head>
<title>Calculator</title>
<style>
body {display:flex;justify-content:center;align-items:center;height:100vh;background:#f4f4f4;}
.calculator {background:#222;padding:20px;border-radius:10px;}
input {width:100%;height:50px;font-size:20px;margin-bottom:10px;text-align:right;}
button {width:50px;height:50px;margin:5px;font-size:18px;}
</style>
</head>
<body>
<div class="calculator">
<input id="display" disabled>
<div>
<button onclick="clearDisplay()">C</button>
<button onclick="append('/')">/</button>
<button onclick="append('*')">*</button>
<button onclick="append('-')">-</button>
</div>
<div>
<button onclick="append('7')">7</button>
<button onclick="append('8')">8</button>
<button onclick="append('9')">9</button>
<button onclick="append('+')">+</button>
</div>
<div>
<button onclick="append('4')">4</button>
<button onclick="append('5')">5</button>
<button onclick="append('6')">6</button>
<button onclick="calculate()">=</button>
</div>
<div>
<button onclick="append('1')">1</button>
<button onclick="append('2')">2</button>
<button onclick="append('3')">3</button>
<button onclick="append('0')">0</button>
</div>
</div>
<script>
function append(val){document.getElementById("display").value+=val;}
function clearDisplay(){document.getElementById("display").value="";}
function calculate(){document.getElementById("display").value=eval(document.getElementById("display").value);}
</script>
</body>
</html>
Output :
Digital Clock
A Digital Clock is a simple & useful web application that displays the current time in hours, minutes & seconds using JavaScript. A digital clock is commonly built using HTML, CSS & JavaScript for dynamic time updates.Project code :
<!DOCTYPE html><html lang="en">
<head>
<meta charset="UTF-8">
<title>Modern Digital Clock</title>
<style>
*{
margin:0;
padding:0;
box-sizing:border-box;
font-family: 'Segoe UI', sans-serif;
}
body{
height:100vh;
display:flex;
justify-content:center;
align-items:center;
background: linear-gradient(135deg, #1d0ba6, #1c14b1, #1018ad);
}
.clock-container{
backdrop-filter: blur(15px);
background: rgba(195, 25, 25, 0.08);
padding:40px 60px;
border-radius:20px;
box-shadow: 0 10px 40px rgba(255, 255, 255, 0.4);
text-align:center;
animation: float 3s ease-in-out infinite;
}
/* Floating animation */
@keyframes float{
0%,100%{ transform: translateY(0px);}
50%{ transform: translateY(-10px);}
}
/* Time */
#clock{
font-size:60px;
font-weight:bold;
color:#fff;
letter-spacing:3px;
}
/* Date */
#date{
margin-top:10px;
font-size:18px;
color:#ddd;
}
#clock::after{
content:'';
display:block;
height:2px;
width:100%;
background: linear-gradient(to right, transparent, #00f2fe, transparent);
margin-top:10px;
}
</style>
</head>
<body>
<div class="clock-container">
<h1 id="clock"></h1>
<p id="date"></p>
</div>
<script>
function updateClock(){
let d = new Date();
let time = d.toLocaleTimeString();
let date = d.toDateString();
document.getElementById("clock").innerText = time;
document.getElementById("date").innerText = date;
}
setInterval(updateClock,1000);
updateClock();
</script>
</body>
</html>
Output :
