HTML5 canvas can be used to draw graphic in web page HTML using Javascript. Here is a basic example of HTML canvas for beginners.
HTML5 canvas with specific widht height and some inline style
<canvas id="mycanvas1" width="200" height="100" style="border:1px solid lightgreen; background-color:lightgray;"> </canvas>
HTML5 canvas and javascript rectangle
<canvas id="mycanvas1" width="200" height="100"
style="border:1px solid lightgreen; background-color:lightgray;">
</canvas>
<script type="text/javascript">
window.addEventListener("load", draw);
function draw() {
var canvas = document.querySelector('#mycanvas1');
var context = canvas.getContext('2d');
context.fillStyle="#ff0000";
context.fillRect(10,10,60,60);
}
</script>
