tags: js graphics

```html
<canvas id="canvas"></canvas>
```
```js
const canvas = document.getElementById("canvas");
const ctx = canvas.getContext("2d");

ctx.fillStyle = "green";
ctx.fillRect(10, 10, 150, 100);
```

# Resources
* [mozilla](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API)