<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Simple Drawing App</title>
<style>
body {
text-align: center;
font-family: Arial, sans-serif;
background-color: #f4f4f4;
}
canvas {
border: 2px solid black;
background-color: white;
cursor: crosshair;
}
.controls {
margin-top: 10px;
}
</style>
</head>
<body>
<h1>HTML Canvas Drawing App</h1>
<canvas id="drawingCanvas" width="500" height="400"></canvas>
<div class="controls">
<label>Color: <input type="color" id="colorPicker" value="#000000"></label>
<label>Size: <input type="range" id="sizePicker" min="1" max="10" value="5"></label>
<button onclick="clearCanvas()">Clear</button>
</div>
<script>
const canvas = document.getElementById("drawingCanvas");
const ctx = canvas.getContext("2d");
let drawing = false;
let color = document.getElementById("colorPicker").value;
let size = document.getElementById("sizePicker").value;
canvas.addEventListener("mousedown", () => drawing = true);
canvas.addEventListener("mouseup", () => drawing = false);
canvas.addEventListener("mousemove", draw);
document.getElementById("colorPicker").addEventListener("input", function() {
color = this.value;
});
document.getElementById("sizePicker").addEventListener("input", function() {
size = this.value;
});
function draw(event) {
if (!drawing) return;
ctx.lineWidth = size;
ctx.lineCap = "round";
ctx.strokeStyle = color;
ctx.lineTo(event.offsetX, event.offsetY);
ctx.stroke();
ctx.beginPath();
ctx.moveTo(event.offsetX, event.offsetY);
}
function clearCanvas() {
ctx.clearRect(0, 0, canvas.width, canvas.height);
}
</script>
</body>
</html>