Rewrite style.css to display properly on media devices

https://www.freecodecamp.org/news/css-media-queries-breakpoints-media-types-standard-resolutions-and-more/

```
320px — 480px: Mobile devices
481px — 768px: iPads, Tablets
769px — 1024px: Small screens, laptops
1025px — 1200px: Desktops, large screens
1201px and more —  Extra large screens, TV
```