Decimal to Hex Converter
/* General Styles */
body {
font-family: 'Roboto', sans-serif;
background-color: #f7f7f7;
margin: 0;
padding: 0;
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
color: #333;
}
.container {
background-color: #fff;
padding: 20px;
border-radius: 8px;
box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
text-align: center;
width: 100%;
max-width: 400px;
}
h1 {
color: #4CAF50;
font-size: 2.5rem;
margin-bottom: 20px;
}
h2 {
color: #ff5733;
margin-top: 20px;
font-size: 1.8rem;
}
p {
font-size: 1.5rem;
color: #008cba;
}
.converter-box {
margin-bottom: 20px;
}
label {
font-size: 1.2rem;
color: #555;
}
input {
padding: 10px;
font-size: 1rem;
width: 100%;
margin-top: 10px;
border-radius: 4px;
border: 1px solid #ccc;
margin-bottom: 15px;
}
button {
padding: 12px 20px;
background-color: #4CAF50;
border: none;
color: white;
font-size: 1rem;
cursor: pointer;
border-radius: 4px;
transition: background-color 0.3s;
}
button:hover {
background-color: #45a049;
}
footer {
margin-top: 20px;
font-size: 0.9rem;
color: #777;
}
/* Responsiveness */
@media (max-width: 600px) {
h1 {
font-size: 2rem;
}
h2 {
font-size: 1.5rem;
}
p {
font-size: 1.2rem;
}
input {
font-size: 1rem;
}
button {
font-size: 1rem;
padding: 10px 18px;
}
}
// Get references to DOM elements
const decimalInput = document.getElementById('decimalInput');
const convertBtn = document.getElementById('convertBtn');
const hexOutput = document.getElementById('hexOutput');
// Add event listener for button click
convertBtn.addEventListener('click', function() {
const decimalValue = parseInt(decimalInput.value);
if (isNaN(decimalValue) || decimalValue < 0) {
hexOutput.textContent = "Please enter a valid positive decimal number.";
hexOutput.style.color = 'red';
} else {
const hexValue = decimalValue.toString(16).toUpperCase();
hexOutput.textContent = `0x${hexValue}`;
hexOutput.style.color = '#008cba';
}
});
