Use only these class names in exam:

`pg` = page
`wrap` = center container
`hero` = top banner
`box` = white box
`frm` = form grid
`inp` = input
`btn` = button
`list` = list area
`row` = horizontal row

Color words:

`dark`
`cyan`
`green`
`ghost`
`light`
`warn`
`danger`
`ok`

Example:

```jsx
<div className="pg">
  <div className="wrap">
    <div className="hero dark">...</div>
    <div className="box">...</div>
    <input className="inp" />
    <button className="btn cyan">Save</button>
  </div>
</div>
```
