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html with canvas tag. It is used to draw graphics on HTML page. With this canvas tag, we use javascript to draw it.
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<canvas id="straightline" width="500" height="500" style="border:7px dotted #000089;">
<!--we always use canvas id for script-->
<!--since we are going to draw arc, we use attribute width and height with style/css-->
<!-- here the width and height defines canvas size-->
<!--since it has no border so-->
<!--we can use different color with the help of css-->
</canvas>
<script>
var ele = document.getElementById("straightline"); //this code finds the canvas Element using getElementbyID
var object = ele.getContext("2d"); //it creates an object for given canvas using getcontext. Then stores in variable
object.fillStyle = "green"; //changes the color of canvas
//Either we can use
//object.fillRect(0, 0, 500, 500);//it fills the entire canvas with green color
//or
object.fillRect(0, 0, straightline.width, straightline.height); //it fills the entire canvas with green color
</script>
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